Verses with the word lengthen in the Old Testament (2 verses):
1 Kings 3:14
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.
Isaiah 54:2
Enlarge the place of thy tent, and let them stretch forth the curtains of thine habitations: spare not, lengthen thy cords, and strengthen thy stakes;
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