申命記 21:17

卻要認所惡之妻生的兒子為長子，將產業多加一分給他；因這兒子是他力量強壯的時候生的，長子的名分本當歸他。」

què yào rèn suǒ è zhī qī shēng de ér zi wèi zhǎng zǐ ， jiāng chǎn yè duō jiā yì fēn gěi tā ； yīn zhè ér zi shì tā lì liàng qiáng zhuàng de shí hòu shēng de ， zhǎng zǐ de míng fēn běn dāng guī tā 。」

but he shall acknowledge the firstborn, the son of the hated, by giving him a double portion of all that he has; for he is the beginning of his strength. The right of the firstborn is his.