Passage
“Also the foreigners who join themselves to Yahweh, To minister to Him, and to love the name of Yahweh, To be His slaves, every one who keeps from profaning the sabbath And takes hold of My covenant,
“Also the foreigners who join themselves to Yahweh, To minister to Him, and to love the name of Yahweh, To be His slaves, every one who keeps from profaning the sabbath And takes hold of My covenant,
Isaiah 56:4 For thus says Yahweh, “To the eunuchs who keep My sabbaths, And choose what pleases Me, And hold fast My covenant,
Isaiah 56:5 To them I will give in My house and within My walls a memorial, And a name better than that of sons and daughters; I will give them an everlasting name which will not be cut off.
Isaiah 56:6 “Also the foreigners who join themselves to Yahweh, To minister to Him, and to love the name of Yahweh, To be His slaves, every one who keeps from profaning the sabbath And takes hold of My covenant,
Isaiah 56:7 Even those I will bring to My holy mountain And make them glad in My house of prayer. Their burnt offerings and their sacrifices will be acceptable on My altar; For My house will be called a house of prayer for all the peoples.”
Isaiah 56:8 Lord Yahweh, who gathers the banished of Israel, declares, “Yet others I will gather to them, to those already gathered.”
The verse centers on "foreigners", "join", "themselves", "yahweh", "minister", "love", and "name". It is saying that the verse draws attention to "foreigners" and "join", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 5's "To them I will give in My..." into verse 7's "Even those I will bring to My...", so "foreigners" and "join" belong inside that flow. In Isaiah context, the local focus is the Holy One of Israel, judgment and restoration, the servant of the LORD, and Zion's hope.
A plain takeaway is to answer the verse's own emphasis on "foreigners" and "join" with trust shaped by these words, not by a vague optimism outside the passage.