Ruth 3:13

Rest here tonight. In the morning, if he wants to redeem you, for it is right for a relation to do this, very well, let him do so. But if he will not, then as surely as Jehovah lives, I will do so.

Judges 8:19

He said: They were my brothers, the sons of my mother. As Jehovah lives, if you had saved them alive, I will not kill you.

Ruth 4:5

Then Boaz said: On the day when you take this field, you will have to take with it Ruth, the Moabitess, the wife of the dead, so that you may keep the name of the dead living in his heritage.

Jeremiah 4:2

if you take the oath, as Jehovah lives in an honest, fair, and right way, then the nations will be blessed, and in him they will glory.

Deuteronomy 25:5-9

When brothers live together and one of them dies without a son the wife of the deceased shall not marry outside the family to a strange man. Her husband's brother shall marry her and perform the duty of a husband's brother to her.

Ruth 2:20

Naomi said to her daughter-in-law: May Jehovah bless him. The man is kind to the living and to the dead. Then Naomi admitted to her: The man is of our family, one of our near relatives.

Matthew 22:24-27

Teacher, Moses said if a man dies having no children, his brother should marry his wife, and bring up seed for his brother.

2 Corinthians 1:23

But I call God for a witness against me. To spare you I did not come to Corinth.

Hebrews 6:16

Men swear by someone greater then themselves: and an oath for confirmation to them puts an end to the problem.

Treasury of Scripture Knowledge

Summary

Tarry this night, and it shall be in the morning, that if he will perform unto thee the part of a kinsman, well; let him do the kinsman's part: but if he will not do the part of a kinsman to thee, then will I do the part of a kinsman to thee, as the LORD liveth: lie down until the morning.

Bible References

If he will

Ruth 2:20
Naomi said to her daughter-in-law: May Jehovah bless him. The man is kind to the living and to the dead. Then Naomi admitted to her: The man is of our family, one of our near relatives.
Ruth 4:5
Then Boaz said: On the day when you take this field, you will have to take with it Ruth, the Moabitess, the wife of the dead, so that you may keep the name of the dead living in his heritage.
Deuteronomy 25:5
When brothers live together and one of them dies without a son the wife of the deceased shall not marry outside the family to a strange man. Her husband's brother shall marry her and perform the duty of a husband's brother to her.
Matthew 22:24
Teacher, Moses said if a man dies having no children, his brother should marry his wife, and bring up seed for his brother.

The lord liveth

Judges 8:19
He said: They were my brothers, the sons of my mother. As Jehovah lives, if you had saved them alive, I will not kill you.
Jeremiah 4:2
if you take the oath, as Jehovah lives in an honest, fair, and right way, then the nations will be blessed, and in him they will glory.
2 Corinthians 1:23
But I call God for a witness against me. To spare you I did not come to Corinth.
Hebrews 6:16
Men swear by someone greater then themselves: and an oath for confirmation to them puts an end to the problem.