This is a list of just some of the passages in the Bible that speak of this great truth.  This is by no means all of them.  But this will get you started.

1) 1 Tim 2:4 - God will have all to be saved. (KJV) - Can His will be thwarted?
2) 1Tim 2:4 - God desires all to come to the knowledge of truth - Will His desire come to pass?
3) 1Tim 2:6 - Salvation of all is testified in due time - Are we judging God before due time?
4) Jn 12:47 - Jesus came to save all - Will He succeed?
5) Eph 1:11 - God works all after the counsel of His will - Can your will overcome His?
6) Jn 4:42 - Jesus is Savior of the world - Can He be Savior of all without saving all?
7) 1 Jn 4:14 - Jesus is Savior of the world - Why don't we believe it?
8) Jn 12:32 - Jesus will draw all mankind unto Himself - To roast or to love?
9) Col 1:16 - By Him all were created - Will He lose a part of His creation?
10) Rom 5:15-21 - In Adam all condemned, in Christ all live - The same all?
11) 1Cor 15:22 - In Adam all die, in Christ all live - Again, the same all?
12) Eph 1:10 - All come into Him at the fulness of times - Are you getting tired of seeing the word, all?
13) Phil 2:9-11 - Every tongue shall confess Jesus is Lord - Will the Holy Spirit be given to everyone?
14) 1Cor 12:3 - Cannot confess except by Holy Spirit - See what I mean?
15) Rom 11:26 - All Israel will be saved - But most Jews don't believe yet!
16) Acts 3:20,21 - Restitution of all - How plain can you get?
17) Luke 2:10 - Jesus will be joy to all people - Is there joy is "hell"?
18) Heb 8:11,12 - All will know God - How long, O Lord?
19) Eph 2:7 - His grace shown in the ages to come - Have we judged Him before the time?
20) Titus 2:11 - Grace has appeared to all - Experientially or prophetically?
21) Rom 8:19-21 - Creation set at liberty - How much of creation?
22) Col 1:20 - All reconciled unto God - There's that word "all" again.
23) 1Cor 4:5 - All will have praise of God - What for?
24) Ja 5:11 - End of the Lord is full of mercy - Is "hell" mercy?
25) Rev 15:4 - All nations worship when God's judgments are seen - Could His judgment be mercy?
26) Rom 11:32 - All subject to unbelief, mercy on all - All?
27) Rom 11:36 - All out of, through, and into Him - ALL into Him?
28) Eph 4:10 - Jesus will fill all things - Including "hell?"
29) Rev 5:13 - All creation seen praising God - Including Satan?
30) 1Cor 15:28 - God will be all in all - What does that mean, preacher?
31) Rev 21:4,5 - No more tears, all things made new - ALL made new?
32) Jn 5:25 - All dead who hear will live - How many will hear?
33) Jn 5:28 - All in the grave will hear & come forth - How will the "righteous" judge, judge?
34) 1 Cor 3:15 - All saved, so as by fire - How can fire save you?
35) Mk 9:49 - Everyone shall be salted with fire - Including you?
36) Rom 11:15 - Reconciliation of the world - Will fire save the world instead of destroy it?
37) 2Cor 5:15 - Jesus died for all - Did He died in vain?
38) Jn 8:29 - Jesus always does what pleases His Father - What pleases the Father? (1Tim 2:4)
39) Heb 1:2 - Jesus is Heir of all things - Does "things" include people?
40) Jn 17:2 - Jesus gives eternal life to all that His Father gave Him - How many did the Father give Him?
41) Jn 3:35 - The Father gave Him all things - (Repeated for emphasis) Study the word "things" in the Greek.
42) 1 Tim 4:9-11 - Jesus is Savior of all! - Can't seem to get away from that word "all."
43) Heb. 7:25 - Jesus is able to save to the uttermost - How far is "uttermost?"
44) 1Cor 15:26 - Last enemy, death, will be destroyed - Including "lake of fire" which is "second death?"
45) Is 46:10 - God will do all His pleasure - Does Old Testament agree with the New?
46) Gen 18:18 - All families of the earth will be blessed - Here comes that word "all" again.
47) Dan 4:35 - God's will done in heaven and earth - What can defeat His will?
48) Ps 66:3,4 - Enemies will submit to God - Can any stay rebellious in "hell?"
49) Ps 90:3 - God turns man to destruction, then says return - How can one return from "destruction?"
50) Is 25:7 - Will destroy veil spread over all nations - All nations?
51) Deut 32:39 - He kills and makes alive - Kills to bring life?
52) Ps 33:15 - God fashions all hearts - "All" hearts, including men like "Hitler?"
53) Prov 16:9 - Man devises, God directs his steps - What about "free will?"
54) Prov 19:21 - Man devises, but God's counsel stands - So much for "free will."
55) Lam 3:31,32 - God will not cast off forever - Why does He cast off in the first place? (1 Cor 11)
56) Is 2:2 - All nations shall flow to the Lord's house - ALL nations?
57) Ps 86:9 - All nations will worship Him - ALL nations!
58) Is 45:23 - All descendants of Israel justified - Including the wicked ones?
59) Ps 138:4 - All kings will praise God - Are you catching on?
60) Ps 65:2-4 - All flesh will come to God - That sounds wondrous.
61) Ps 72:18 - God only does wondrous things - I wish we would believe that.
62) Is 19:14,15 - Egypt & Assyria will be restored - Really?
63) Ezk 16:55 - Sodom will be restored to former estate - Sounds impossible.
64) Jer 32:17 - Nothing is too difficult for Him - Nothing? No, nothing!
65) Ps 22:27 - All ends of the earth will turn to Him - For what purpose?
66) Ps 22:27 - All families will worship before Him - Praise His name!
67) Ps 145:9 - He is good to all - Including your worst enemies.
68) Ps 145:9 - His mercies are over all his works - Let's start believing that.
69) Ps 145:14 - He raises all who fall - Who hasn't fallen in sin?
70) Ps 145:10 - All His works will praise Him - For "eternal torment?"
71) Is 25:6 - Lord makes a feast for all people - And you are invited.
72) Jer 32:35 - Never entered His mind to torture his children with fire. This came from the carnal mind.
73) Jn 6:44 - No one can come to Him unless He draws them. You can't "choose" to follow Him.
74) Jn 12:32 - I will draw all mankind unto Myself - Amen!!!
75) Ps 135:6 - God does what pleases Him - If it pleases Him to save all that He might be in all, are you upset?

The question we must answer is “Does the word “all” in these Scriptures really mean all?”  Or does it mean only some?  Remember what I said in chapter 4?  Why do we so easily align ourselves with eternal torment when there are so many passages that speak of the salvation of all men?  We must either explain away the “all” in every one of these passages or we must find out if the word “eternal” really means eternal.  As human beings we cannot truly understand eternity.  That is why the Lord mentions it only a few times in all of scripture.  When we die and stand before a holy God, we will not find ourselves in “eternity” but only in the next age.  The Scriptures certainly speak of a time both before and after the ages (1 Cor. 2:7; 10:11) and a time when our mortal bodies will put on immortality (1 Cor. 15:53), but beyond that, God has not revealed much more.

You see, we live in time.  We think in terms of time.  Our finite minds cannot fathom what eternity is.  We throw out the word eternity far too flippantly.  Let us be very careful how we use the word “eternal” or “everlasting”.  As the Bible never uses the word “eternal” or “everlasting” to describe the fate of man, neither should we!

Again, a quote from Hannah Whitall Smith:

And with this a veil seemed to be withdrawn from before the plans of the universe, and I saw that it was true, as the Bible says, that "as in Adam all die, even so in Christ should all be made alive." As was the first, even so was the second.  The "all" in one case could not in fairness mean less than the "all" in the other.  I saw therefore that the remedy must necessarily be equal to the disease, the salvation must be as universal as the fall.