'Permanently' in the Bible

then his master shall bring him to God, then he shall bring him to the door or the doorpost. And his master shall pierce his ear with an awl; and he shall serve him permanently.

‘The land, moreover, shall not be sold permanently, for the land is Mine; for you are but aliens and sojourners with Me.

But if it is not bought back for him within the space of a full year, then the house that is in the walled city passes permanently to its purchaser throughout his generations; it does not revert in the jubilee.