1 Kings 3:14

And if you will walk in my ways, to keep my statutes and my commandments, as your father David did walk, then I will lengthen your days.

Psalm 91:16

With long life will I satisfy him, and show him my salvation.

Proverbs 3:2

For length of days, and long life, and peace, shall they add to you.

1 Kings 3:6

And Solomon said, You have shown unto your servant David my father great mercy, according as he walked before you in truth, and in righteousness, and in uprightness of heart with you; and you have kept for him this great kindness, that you have given him a son to sit on his throne, as it is this day.

1 Kings 15:5

Because David did that which was right in the eyes of the LORD, and turned not aside from anything that he commanded him all the days of his life, except only in the matter of Uriah the Hittite.

Proverbs 3:16

Length of days is in her right hand; and in her left hand riches and honor.

Deuteronomy 5:16

Honor your father and your mother, as the LORD your God has commanded you; that your days may be prolonged, and that it may go well with you, in the land which the LORD your God gives you.

Deuteronomy 25:15

But you shall have a perfect and just weight, a perfect and just measure shall you have: that your days may be lengthened in the land which the LORD your God gives you.

1 Kings 2:3-4

And keep the charge of the LORD your God, to walk in his ways, to keep his statutes, and his commandments, and his judgments, and his testimonies, as it is written in the law of Moses, that you may prosper in all that you do, and wherever you turn yourself:

1 Kings 3:3

And Solomon loved the LORD, walking in the statutes of David his father: except that he sacrificed and burnt incense in high places.

1 Kings 9:4-5

And if you will walk before me, as David your father walked, in integrity of heart, and in uprightness, to do according to all that I have commanded you, and will keep my statutes and my judgments:

1 Chronicles 22:12-13

Only the LORD give you wisdom and understanding, and give you charge concerning Israel, that you may keep the law of the LORD your God.

1 Chronicles 28:9

And you, Solomon my son, know you the God of your father, and serve him with a perfect heart and with a willing mind: for the LORD searches all hearts, and understands all the imaginations of the thoughts: if you seek him, he will be found of you; but if you forsake him, he will cast you off forever.

2 Chronicles 7:17-19

And as for you, if you will walk before me, as David your father walked, and do according to all that I have commanded you, and shall observe my statutes and my judgments;

2 Chronicles 17:3-4

And the LORD was with Jehoshaphat, because he walked in the first ways of his father David, and sought not unto Baalim;

2 Chronicles 29:2

And he did that which was right in the sight of the LORD, according to all that David his father had done.

2 Chronicles 34:2

And he did that which was right in the sight of the LORD, and walked in the ways of David his father, and turned aside neither to the right hand, nor to the left.

Psalm 21:4

He asked life of you, and you gave it to him, even length of days forever and ever.

Psalm 132:12

If your children will keep my covenant and my testimony that I shall teach them, their children shall also sit upon your throne forevermore.

Zechariah 3:7

Thus says the LORD of hosts; If you will walk in my ways, and if you will keep my charge, then you shall also judge my house, and shall also keep my courts, and I will give you places to walk among these that stand here.

Acts 13:22

And when he had removed him, he raised up unto them David to be their king; to whom also he gave testimony, and said, I have found David the son of Jesse, a man after my own heart, who shall fulfill all my will.

1 Timothy 4:8

For bodily exercise profits for a little while: but godliness is profitable unto all things, having promise of the life that now is, and of that which is to come.

Treasury of Scripture Knowledge

Summary

And if thou wilt walk in my ways, to keep my statutes and my commandments, as thy father David did walk, then I will lengthen thy days.

Bible References

If thou

1 Kings 2:3
And keep the charge of the LORD your God, to walk in his ways, to keep his statutes, and his commandments, and his judgments, and his testimonies, as it is written in the law of Moses, that you may prosper in all that you do, and wherever you turn yourself:
1 Chronicles 22:12
Only the LORD give you wisdom and understanding, and give you charge concerning Israel, that you may keep the law of the LORD your God.
1 Chronicles 28:9
And you, Solomon my son, know you the God of your father, and serve him with a perfect heart and with a willing mind: for the LORD searches all hearts, and understands all the imaginations of the thoughts: if you seek him, he will be found of you; but if you forsake him, he will cast you off forever.
2 Chronicles 7:17
And as for you, if you will walk before me, as David your father walked, and do according to all that I have commanded you, and shall observe my statutes and my judgments;
Psalm 132:12
If your children will keep my covenant and my testimony that I shall teach them, their children shall also sit upon your throne forevermore.
Zechariah 3:7
Thus says the LORD of hosts; If you will walk in my ways, and if you will keep my charge, then you shall also judge my house, and shall also keep my courts, and I will give you places to walk among these that stand here.

As thy

1 Kings 3:3
And Solomon loved the LORD, walking in the statutes of David his father: except that he sacrificed and burnt incense in high places.
1 Kings 9:4
And if you will walk before me, as David your father walked, in integrity of heart, and in uprightness, to do according to all that I have commanded you, and will keep my statutes and my judgments:
1 Kings 15:5
Because David did that which was right in the eyes of the LORD, and turned not aside from anything that he commanded him all the days of his life, except only in the matter of Uriah the Hittite.
2 Chronicles 17:3
And the LORD was with Jehoshaphat, because he walked in the first ways of his father David, and sought not unto Baalim;
2 Chronicles 29:2
And he did that which was right in the sight of the LORD, according to all that David his father had done.
2 Chronicles 34:2
And he did that which was right in the sight of the LORD, and walked in the ways of David his father, and turned aside neither to the right hand, nor to the left.
Acts 13:22
And when he had removed him, he raised up unto them David to be their king; to whom also he gave testimony, and said, I have found David the son of Jesse, a man after my own heart, who shall fulfill all my will.

I will lengthen

Deuteronomy 5:16
Honor your father and your mother, as the LORD your God has commanded you; that your days may be prolonged, and that it may go well with you, in the land which the LORD your God gives you.
Deuteronomy 25:15
But you shall have a perfect and just weight, a perfect and just measure shall you have: that your days may be lengthened in the land which the LORD your God gives you.
Psalm 21:4
He asked life of you, and you gave it to him, even length of days forever and ever.
Psalm 91:16
With long life will I satisfy him, and show him my salvation.
Proverbs 3:2
For length of days, and long life, and peace, shall they add to you.
1 Timothy 4:8
For bodily exercise profits for a little while: but godliness is profitable unto all things, having promise of the life that now is, and of that which is to come.