1 Timothy 1:2
[It is being sent] to Timothy, my true son in the faith [i.e., in the realm of Christianity, not in a physical sense]. May you have unearned favor, mercy and peace from God the Father and Christ Jesus our Lord.
[It is being sent] to Titus, my true son, [who shares] in a common faith. [May you have] unearned favor and peace [which come] from God the Father and Christ Jesus our Savior.
I appeal to you on behalf of my son, Onesimus, whom I [spiritually] conceived while [here] in prison.
But you people know about his proven reliability, how he served with me in advancing [the work of] the Gospel just like a son working with his father.
1 Corinthians 4:17
This is the reason that I am sending Timothy to you. He is my dearly loved and faithful [spiritual] son in [the service of] the Lord, and he will remind you of my ways [i.e., my teaching and conduct] which are in [the service of] Christ. I teach these things in every congregation wherever [I go].
And again, [Isa. 8:17 LXX], "I will place my trust in God." And again, [Isa. 8:18], "Look, [here] I am with the children whom God gave me."
2 John 1:13
The children [i.e., members] of your chosen sister [church] send you their greetings. [See verse 1].
1 Corinthians 4:14
I am not writing this to shame you but to warn you, as my dearly loved children.
My little children [i.e., dear ones], I am again deeply pained [as a woman in childbirth] over your [spiritual] condition, until [the life of] Christ becomes formed in your character.
1 Timothy 1:18
I give you this instruction, my son Timothy, in keeping with the previously spoken prophecies [i.e., predictions] about you, so that by [following] them you will fight the good battle,
2 Timothy 1:2
[It is being sent] to Timothy, my dearly loved son. May you have unearned favor, mercy and peace from God the Father and Christ Jesus our Lord.
2 Timothy 2:1
So, may you, my son, be strengthened through the unearned favor that comes from [your fellowship with] Christ Jesus.
1 Peter 5:13
Your sister [church] here in Babylon, [also] chosen [by God], as you have been, sends her greetings along with my [spiritual] son Mark.
1 John 2:1
My little children [i.e., dear ones], I am writing this to you so that you will not sin anymore. But if anyone does sin, we have Someone to go to the Father on our behalf; it is Jesus Christ, the [only] righteous One.
1 John 2:12
I am writing to you, little children [i.e., dear ones], because you have been forgiven of your sins for [the sake of] Christ's name.
1 John 2:13
I am writing to you fathers, because you have known Him [i.e., Christ], [who has existed] from the beginning [See John 1:1]. I am writing to you young men, because you have overcome the [power of the] evil one [i.e., through faith they had gained victory over Satan, See 5:4].
3 John 1:4
I do not have any greater joy than to hear that my [spiritual] children are living according to the truth.