Romans 8:16,17
The Spirit itself bears witness with our spirit, that we are the children of God:
Torrey's Topical Textbook—AKJV

1 Peter 2:2
As newborn babes, desire the sincere milk of the word, that you may grow thereby:
Torrey's Topical Textbook—AKJV

1 John 5:1
Whoever believes that Jesus is the Christ is born of God: and every one that loves him that begat loves him also that is begotten of him.
Torrey's Topical Textbook—AKJV