'Permanently' in the Bible

May you observe his statutes and keep his commands that I'm giving you today, so that life may go well for you and for your descendants after you. That way, you'll live a long life in the land that the LORD your God is about to give you permanently."

you shall take an awl and pierce a hole through his ear to the door. Then he will become your servant permanently (this applies to your female servant as well).

For the Lord your God has chosen them and their sons from all your tribes to stand and serve in his name permanently.