New Revised Standard Version
Remain this night, and in the morning, if he will act as next-of-kin for you, good; let him do it. If he is not willing to act as next-of-kin for you, then, as the LORD lives, I will act as next-of-kin for you. Lie down until the morning.”

Contemporary English Version
Stay here until morning, then I will find out if he is willing to look after you. If he isn't, I promise by the living God to do it myself. Now go back to sleep until morning.

New American Bible
Stay where you are for tonight, and tomorrow, if he will act as redeemer for you, good. But if he will not, as the LORD lives, I will do it myself. Lie there until morning.”

Douay-Rheims Bible
Rest thou this night: and when morning is come, if he will take thee by the right of kindred, all is well: but if he will not, I will undoubtedly take thee, so the Lord liveth: sleep till the morning.

Rest thou this night: and when morning is come, if he will take thee by the right of kindred, all is well: but if he will not, I will undoubtedly take thee, so the Lord liveth: sleep till the morning.

if he will

Ruth 2:20 And Noemi answered her: Blessed be he of the Lord: because the same kindness which he shewed to the living, he hath kept also to the dead. And again she said: The man is our kinsman.

Ruth 4:5 And Booz said to him: When thou shalt buy the field at the woman's hand, thou must take also Ruth, the Moabitess, who was the wife of the deceased: to raise up the name of thy kinsman in his inheritance.

Deuteronomy 25:5-9 When brethren dwell together, and one of them dieth without children, the wife of the deceased shall not marry to another: but his brother shall take her, and raise up seed for his brother: . . .

Matthew 22:24-27 Saying: Master, Moses said: If a man die having no son, his brother shall marry his wife and raise up issue to his brother. . . .

the Lord liveth

Judges 8:19 He answered them: They were my brethren, the sons of my mother. As the Lord liveth, if you had saved them, I would not kill you.

Jeremiah 4:2 And thou shalt swear: As the Lord liveth, in truth, and in judgment, and in justice: and the Gentiles shall bless him, and shall praise him.

2 Corinthians 1:23 But I call God to witness upon my soul that to spare you, I came not any more to Corinth: not because we exercise dominion over your faith: but we are helpers of your joy. For in faith you stand.

Hebrews 6:16 For men swear by one greater than themselves: and an oath for confirmation is the end of all their controversy.