What does Isaiah 56:6 mean?
What is the meaning of Isaiah 56:6?

And the foreigners

• God’s embrace extends beyond ethnic Israel. In Isaiah’s day, “foreigners” were Gentiles who lived among the covenant people (cf. Exodus 12:48; Isaiah 42:6).

• This phrase shows that salvation was always meant to be global—fulfilled in Christ who “is the atoning sacrifice…for the sins of the whole world” (1 John 2:2).

Revelation 5:9 pictures redeemed people “from every tribe and tongue and people and nation,” echoing Isaiah’s promise.


who join themselves to the LORD

• “Join” pictures deliberate attachment, like grafting a branch (Romans 11:17).

Jeremiah 50:5 speaks of nations saying, “Come, let us join ourselves to the LORD in an everlasting covenant.”

• True faith is never passive; it clings to the living God (Joshua 23:8).


to minister to Him

• Ministry isn’t limited to Israel’s priests; any believer may serve God directly (1 Peter 2:9).

• In Isaiah 61:6 the Lord foretells, “You will be called priests of the LORD; they will speak of you as ministers of our God.”

• Service includes worship, obedience, and works of mercy (Hebrews 13:15-16).


to love the name of the LORD

• Love drives obedience (John 14:15).

Psalm 5:11: “May those who love Your name rejoice in You.”

Malachi 1:11 condemns half-hearted worship; Isaiah lifts up foreigners who genuinely cherish God’s reputation and character.


and to be His servants

• A servant yields ownership. Paul says, “You have been set free from sin and have become slaves to God” (Romans 6:22).

• Jesus declares, “If anyone serves Me, he must follow Me” (John 12:26).

• Isaiah foreshadows believers gladly identifying as bond-servants of the Lord.


all who keep the Sabbath without profaning it

• Sabbath keeping expressed covenant loyalty (Exodus 20:8-11).

Nehemiah 13:17-23 shows how seriously God viewed Sabbath profanation.

• While the Mosaic sign is fulfilled in Christ—“The Son of Man is Lord of the Sabbath” (Matthew 12:8)—the principle of resting in God’s completed work remains (Hebrews 4:9-10).


and who hold fast to My covenant

• “Hold fast” means steady perseverance (Deuteronomy 4:4).

• Isaiah points to a faith that endures, not a momentary decision (Hebrews 10:23).

• God promises in Jeremiah 31:33, “I will put My law in their minds and inscribe it on their hearts.” Clinging to the covenant demonstrates that inner work.


summary

Isaiah 56:6 reveals God’s heart to welcome anyone—Jew or Gentile—who clings to Him through faith expressed in loving devotion, obedient service, Sabbath-centered rest, and covenant loyalty. The verse anticipates the New Testament reality of one unified people redeemed by Christ, called to worship, serve, and delight in the Lord forever.

Why is the promise in Isaiah 56:5 significant for eunuchs in biblical times?
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