Contradiction with Isaiah 48:19
Isaiah 48:19 emphasizes the importance of physical descendants for one's name to continue, which contrasts with Isaiah 56:5 that offers a name better than sons and daughters.
Isaiah 48:19: Thy seed also had been as the sand, and the offspring of thy bowels like the gravel thereof; his name should not have been cut off nor destroyed from before me.
Contradiction with Genesis 17:5-6
Genesis 17:5-6 highlights God's promise of numerous descendants to Abraham, which is a traditional view of legacy, in contrast to Isaiah 56:5 where a spiritual legacy is emphasized.
Genesis 17:5-6: Neither shall thy name any more be called Abram, but thy name shall be Abraham; for a father of many nations have I made thee. [Abraham: that is, Father of a great multitude]
Contradiction with Deuteronomy 28:62
Deuteronomy 28:62 describes a curse causing few descendants as a consequence, implying the importance of physical offspring unlike the promise in Isaiah 56:5.
Deuteronomy 28:62: And ye shall be left few in number, whereas ye were as the stars of heaven for multitude; because thou wouldest not obey the voice of the LORD thy God.
Contradiction with 1 Samuel 2:30-33
This passage notes a loss of legacy through family due to disobedience, emphasizing physical family lineage as opposed to the spiritual legacy in Isaiah 56:5.
1 Samuel 2:30-33: Wherefore the LORD God of Israel saith, I said indeed [that] thy house, and the house of thy father, should walk before me for ever: but now the LORD saith, Be it far from me; for them that honour me I will honour, and they that despise me shall be lightly esteemed.
Contradiction with Psalm 127:3
Psalm 127:3 considers children as a heritage from the Lord, which presents a traditional view of legacy that contrasts with Isaiah 56:5 where a name above children is given.
Psalm 127:3: Lo, children [are] an heritage of the LORD: [and] the fruit of the womb [is his] reward.
Paradox #1
Isaiah 56:5 is about God's promise to give a lasting name to those who are traditionally excluded, like foreigners and eunuchs, within His house. A potential theological conflict might arise when this verse is considered alongside other parts of the Old Testament, like Deuteronomy 23:1, which restricts eunuchs from entering the assembly of the Lord. This creates a tension between inclusivity and exclusivity. However, many interpret this as a development in understanding God's acceptance rather than a contradiction.