Verses 1–2
Do Righteousness
The opening words of this chapter are a repetition of the admonition in the previous chapter (Isaiah 55:6-Judges :). The thoughts and ways of Israel are not those of the LORD (Isaiah 55:8). The precious promises that follow in that chapter are an exhortation for those living in sin to leave their ways and for the unrighteous to give up their thoughts.
In the previous chapter we heard the invitation – four times “come” – to receive the blessings of the new covenant. In the next two chapters, Isaiah 56-57, which is the final part of the second part, Isaiah 49-57, we can recognize the response to this invitation. First, in the pious heathen peoples who will be introduced into the kingdom of God, Isaiah 56:1-8, and second, in the wicked Israelites who will be banished from that same kingdom, Isaiah 56:9 to Isaiah 57:21. In these two groups we recognize the fulfillment of the words of the Lord Jesus to the centurion of Capernaum (Matthew 8:11-2 Kings :; Matthew 19:30).
Let them preserve “justice” and do “righteousness” (Isaiah 56:1). Then they will be in accordance with the attributes and actions that apply to God’s kingdom. The reason why they should do this is twofold: the kingdom will soon become public in salvation as well as in righteousness. When they realize how near His salvation is and that His righteous acts are about to be revealed, they will be encouraged to persevere.
A special blessing is promised to him who keeps God’s commandment (Isaiah 56:2). Of all God’s commandments, the Sabbath commandment is mentioned here as an illustration of keeping God’s commandments. This is the best test of whether someone really wants to keep God’s commandments. He who loves the LORD shall keep them. In addition, the Sabbath is also a sign of the covenant (Ezekiel 20:12) in connection with the new covenant. Keeping the Sabbath commandment reveals the mind of the heart that wants to do righteousness. It is open, not only to the Israelites, but to every “son of man” (Isaiah 56:2), i.e. also to those from the nations.
Besides keeping from profaning the Sabbath commandment the LORD also speaks about keeping the hand from doing any evil. The hand speaks of deeds. He who lives internally (heart) and externally (hand) in accordance with God is “blessed”.
For us, the Sabbath is the peace in Christ, which we can only enjoy if our hand does not evil.