And this isn't about being chosen into eternal life either brother, no where does it say that. Secondly He's addressing the twelve. The past two chapters before he's telling them of things to come. This is before Jesus was to be betrayed and crucified. And then in John 17 He goes on to pray for the twelve
“"I have manifested Your name to the men whom You gave Me out of the world; they were Yours and You gave them to Me, and they have kept Your word.”
John 17:6 NASB
He's speaking specifically to the twelve. He didn't manifest The father to the whole world. He isn't speaking of the "elect" as you make it seem. It's abundantly clear that His choosing of them was to be His disciples. Just as He prayed all night before He "chose them".
Scripture tells us 'little children' and infants are those in whom God has perfected praises.
Notice the wording 'little children' is always associated with knowing God and salvation, regardless of age.
Matthew 18:3
and said, “Assuredly, I say to you, unless you are converted and become as
little children, you will by no means enter the kingdom of heaven.
Matthew 19:13
[
Jesus Blesses Little Children ] Then
little children were brought to Him that He might put
His hands on them and pray, but the disciples rebuked them.
Matthew 19:14
But Jesus said, “Let the little children come to Me, and do not forbid them; for of such is the kingdom of heaven.”
Mark 9:37
“Whoever receives one of these little children in My name receives Me; and whoever receives Me, receives not Me but Him who sent Me.”
Mark 10:13
[
Jesus Blesses Little Children ] Then they brought
little children to Him, that He might touch them; but the disciples rebuked those who brought
them.
Mark 10:14
But when Jesus saw
it, He was greatly displeased and said to them, “Let the
little children come to Me, and do not forbid them; for of such is the kingdom of God.
Luke 18:15
[
Jesus Blesses Little Children ] Then they also brought infants to Him that He might touch them; but when the disciples saw
it, they rebuked them.
Luke 18:16
But Jesus called them to Him and said, “Let the little children come to Me, and do not forbid them; for of such is the kingdom of God.
John 13:33
Little children, I shall be with you a
little while longer. You will seek Me; and as I said to the Jews, ‘Where I am going, you cannot come,’ so now I say to you.
Galatians 4:19
My
little children, for whom I labor in birth again until Christ is formed in you,
1 John 2:1
My
little children, these things I write to you, so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous.
1 John 2:12
[
Their Spiritual State ] I write to you,
little children, Because your sins are forgiven you for His name’s sake.
1 John 2:13
I write to you, fathers, Because you have known Him
who is from the beginning. I write to you, young men, Because you have overcome the wicked one. I write to you,
little children, Because you have known the Father.
1 John 2:18
[
Deceptions of the Last Hour ]
Little children, it is the last hour; and as you have heard that the Antichrist is coming, even now many antichrists have come, by which we know that it is the last hour.
1 John 2:28
[
The Children of God ] And now,
little children, abide in Him, that when He appears, we may have confidence and not be ashamed before Him at His coming.
1 John 3:7
Little children, let no one deceive you. He who practices righteousness is righteous, just as He is righteous.
1 John 3:18
My
little children, let us not love in word or in tongue, but in deed and in truth.
1 John 4:4
You are of God,
little children, and have overcome them, because He who is in you is greater than he who is in the world.
1 John 5:21
Little children, keep yourselves from idols. Amen.