I have been twenty years in your house. I served you fourteen years for your two daughters and six years for your flocks; and you have changed my wages ten times.
If you buy a Hebrew servant [as the result of debt or theft], he shall serve six years, and in the seventh he shall go out free, paying nothing.
And if your brother, a Hebrew man or a Hebrew woman, is sold to you and serves you six years, then in the seventh year you shall let him go free from you.
It shall not seem hard to you when you let him go free from you, for at half the cost of a hired servant he has served you six years; and the Lord your God will bless you in all you do.
At the end of seven years you shall let every man his brother who is a Hebrew go free who has sold himself or has been sold to you and has served you six years; but your fathers did not listen to and obey Me or incline their ear [submitting and consenting to Me].
Six years you shall sow your land and reap its yield.
For six years you shall sow your field, and for six years you shall prune your vineyard and gather in its fruits.
Jephthah judged Israel six years. Then Jephthah the Gileadite died and was buried in one of the cities of Gilead.
1 Kings 16:23
In the thirty-first year of Asa king of Judah, Omri began his reign of twelve years over Israel. He reigned six years in Tirzah.
2 Kings 11:3
Joash was with his nurse hidden in the house of the Lord for six years. And Athaliah reigned over the land.
And he said to him and to me, For 2,300 evenings and mornings; then the sanctuary shall be cleansed and restored.
2 Chronicles 22:12
And Joash was with them hidden in the house of God six years, and Athaliah reigned over the land.