Ruth 1:11

And Naomi saith, 'Turn back, my daughters; why do ye go with me? are there yet to me sons in my bowels that they have been to you for husbands?

Genesis 38:11

And Judah saith to Tamar his daughter-in-law, 'Abide a widow at thy father's house, till Shelah my son groweth up;' for he said, 'Lest he die -- even he -- like his brethren;' and Tamar goeth and dwelleth at her father's house.

Deuteronomy 25:5

'When brethren dwell together, and one of them hath died, and hath no son, the wife of the dead is not without to a strange man; her husband's brother doth go in unto her, and hath taken her to him for a wife, and doth perform the duty of her husband's brother;

Treasury of Scripture Knowledge

Summary

And Naomi said, Turn again, my daughters: why will ye go with me? are there yet any more sons in my womb, that they may be your husbands?

General references

Bible References

That they

Genesis 38:11
And Judah saith to Tamar his daughter-in-law, 'Abide a widow at thy father's house, till Shelah my son groweth up;' for he said, 'Lest he die -- even he -- like his brethren;' and Tamar goeth and dwelleth at her father's house.
Deuteronomy 25:5
'When brethren dwell together, and one of them hath died, and hath no son, the wife of the dead is not without to a strange man; her husband's brother doth go in unto her, and hath taken her to him for a wife, and doth perform the duty of her husband's brother;

General references

Genesis 38:8
And Judah saith to Onan, 'Go in unto the wife of thy brother, and marry her, and raise up seed to thy brother;'
Luke 20:28
saying, 'Teacher, Moses wrote to us, If any one's brother may die, having a wife, and he may die childless -- that his brother may take the wife, and may raise up seed to his brother.