Matthew 18:14

Even so it is not the will of your heavenly Father, that any one of these little ones should be lost.

John 17:12

While I was with them in the world, I kept them in thy name; I have preserved those whom Thou gavest me, and none of them is lost; except the son of perdition, that the scripture might be fulfilled.

Matthew 5:16

So let your light shine before men, that they may see your good works, and glorify your father, who is in heaven.

Matthew 6:9

After this manner therefore pray ye,

Matthew 6:32

(things which the heathens are so inquisitive after) for your heavenly Father knows that ye have need of all these.

Luke 12:32

Fear not, little flock; for it is your Father's pleasure to give you the kingdom.

John 6:39-40

And this is the will of the Father who sent me, that of all that He hath given me, I should lose none, but should raise them up at the last day.

John 10:27-30

and I know them, and they follow me.

John 21:15

Now when they had dined, Jesus saith to Simon Peter, Simon son of Jonas, dost thou love me more than these? He saith unto Him, Yes, Lord, Thou knowest that I love Thee. He saith unto him, Feed my lambs.

Romans 8:28-39

And we know that all things co-operate for good to them that love God, to them that are called according to his purpose;

1 Corinthians 8:11-13

and so the weak brother, for whom Christ died, shall perish by thy knowledge?

Ephesians 1:5-7

having before appointed us unto the adoption of children by Jesus Christ unto Himself, according to the good pleasure of his will;

2 Timothy 2:10

Therefore I submit to every thing for the sake of the elect, that they also may obtain the salvation which is by Christ Jesus, with eternal glory.

Hebrews 12:13

And make strait paths for your feet, that what is lame may not be turned out of the way, but rather be healed.

1 Peter 1:3-5

Blessed be the God and Father of our Lord Jesus Christ, who according to his abundant mercy hath regenerated us to a lively hope, by the resurrection of Jesus Christ from the dead,

2 Peter 3:9

The Lord is not slow as to his promise (as some count it slowness) but is long-suffering towards us, not willing that any should perish, but that all should come to repentance.

Treasury of Scripture Knowledge

Summary

Even so it is not the will of your Father which is in heaven, that one of these little ones should perish.

Bible References

It is

Luke 12:32
Fear not, little flock; for it is your Father's pleasure to give you the kingdom.
John 6:39
And this is the will of the Father who sent me, that of all that He hath given me, I should lose none, but should raise them up at the last day.
John 10:27
and I know them, and they follow me.
John 17:12
While I was with them in the world, I kept them in thy name; I have preserved those whom Thou gavest me, and none of them is lost; except the son of perdition, that the scripture might be fulfilled.
Romans 8:28
And we know that all things co-operate for good to them that love God, to them that are called according to his purpose;
Ephesians 1:5
having before appointed us unto the adoption of children by Jesus Christ unto Himself, according to the good pleasure of his will;
1 Peter 1:3
Blessed be the God and Father of our Lord Jesus Christ, who according to his abundant mercy hath regenerated us to a lively hope, by the resurrection of Jesus Christ from the dead,