Isaiah 56 promises the foreigner and the eunuch, outsiders under the old covenant, a monument and an everlasting name in God's house when they join themselves to the Lord and keep his Sabbaths. The Sabbath is both a creation ordinance binding on all people and a covenant sign that pictures resting in Christ alone, and the Lord's Day still orders the rhythm of a believer's week. Race, ancestry, marital status and the ability to have children exclude no one from Christ's kingdom; only unbelief and impenitence do. The Lord declares that he will gather yet others besides the outcasts of Israel, Philip's baptism of the Ethiopian eunuch shows the promise fulfilled, and the church in this age of ingathering faces outward.