出埃及記 21:8

⁸ 主人選定他歸自己，若不喜歡他，就要許他贖身；主人既然用詭詐待他，就沒有權柄賣給外邦人。

Perpetual

'Perpetual' in the literal sense, means to the end of one's life, after death, and eternity.