Ephesians 6:4 (KJV)

⁴ And, ye fathers, provoke not your children to wrath: but bring them up in the nurture and admonition of the Lord.

Proverbs 22:6 (KJV)

⁶ Train up a child in the way he should go: and when he is old, he will not depart from it.

Proverbs 13:24 (AMP)

²⁴ He who withholds the rod [of discipline] hates his son,
But he who loves him disciplines and trains him diligently andappropriately [with wisdom and love].

Hebrews 12:6 (KJV)

⁶ For whom the Lord loveth he chasteneth, and scourgeth every son whom he receiveth.

Psalm 127:3 (KJV)

³ Lo, children are an heritage of the Lord: and the fruit of the womb is his reward.