Salvation for Gentiles who Keep Sabbath

Thus says the Lord: “Keep justice, and do righteousness, For My salvation is about to come, And My righteousness to be revealed.

Blessed is the man who does this, And the son of man who lays hold on it; Who keeps from defiling the Sabbath, And keeps his hand from doing any evil.”

Do not let the son of the foreigner Who has joined himself to the Lord Speak, saying, “The Lord has utterly separated me from His people”; Nor let the eunuch say, “Here I am, a dry tree.” For thus says the Lord: “To the eunuchs who keep My Sabbaths, And choose what pleases Me, And hold fast My covenant,

Even to them I will give in My house And within My walls a place and a name Better than that of sons and daughters; I will give them an everlasting name That shall not be cut off.

“Also the sons of the foreigner Who join themselves to the Lord, to serve Him, And to love the name of the Lord, to be His servants— Everyone who keeps from defiling the Sabbath, And holds fast My covenant—

Even them I will bring to My holy mountain, And make them joyful in My house of prayer. Their burnt offerings and their sacrifices Will be accepted on My altar; For My house shall be called a house of prayer for all nations.”

The Lord God, who gathers the outcasts of Israel, says, “Yet I will gather to him Others besides those who are gathered to him.”

Isaiah 56:1‭-‬8 NKJV