if thy children

Psalm 89:30-35
If his sons forsake My law and do not walk in My judgments, . . .

their children

Psalm 102:28
The children of Your servants will dwell securely, and their descendants will be established before You."

Psalm 115:14
May the LORD give you increase, both you and your children.

Isaiah 9:7
Of the increase of His government and peace there will be no end. He will reign on the throne of David and over his kingdom, to establish and sustain it with justice and righteousness from that time and forevermore. The zeal of the LORD of Hosts will accomplish this.

Isaiah 59:21
"As for Me, this is My covenant with them, " says the LORD. "My Spirit who is on you, and My words that I have put in your mouth, will not depart from your mouth, from the mouths of your children, or from the mouths of your children's children, from now on and forevermore, " says the LORD.

Luke 1:32, 33
He will be great and will be called the Son of the Most High. The Lord God will give Him the throne of His father David, . . .