Verses 1–7
Invitation of the LORD
The answer of the LORD to the questions of the faithful remnant in the previous chapter can now be found in this chapter and especially in Isaiah 65:8-1 Samuel :. The condition of the people was so bad, that an explanation of the judgment that struck them is needed first. So stubbornly and ceaselessly they resisted the grace of God.
Paul quotes Isaiah 65:1-Exodus : in Romans 10 from the Septuagint. There we see that he uses Isaiah 65:1 to apply this verse to the nations (Romans 10:20). Under the direct guidance of the Holy Spirit, the great apostle of the nations used this verse for them, while quoting Isaiah 65:2 to illustrate the apostate state of Israel (Romans 10:21). By quoting both verses, Paul links the acceptance of the nations to the disobedience of Israel (cf. Acts 13:46).
The acceptance of the nations takes place now, in the time of grace. It will also take place in the future. Then the gospel of the kingdom will be brought and a multitude who no one can count will accept that gospel.
In the section that follows, Isaiah 65:3-Numbers : provide a terrible revelation of the idolatrous practices of God’s people, by which they offend the LORD. As a result, Israel does not come to receive the blessings that the nations have received.
To “sit among graves” probably has to do with a form of spiritism that tries to get in touch with the dead. They go to the cemeteries at night to consult evil spirits instead of asking for the LORD. In doing so they defile themselves in a gruesome way.
Those who commit these atrocities pride themselves, as usual, on their special holiness and keep the uninitiated at a distance by posing themselves as inaccessible to others (Isaiah 65:5). They claim a false holiness. Their whole behavior is a stench to the LORD. It fills the measure of their sins and calls for the most serious just repay (Isaiah 65:6-Judges :).
Here we see Phariseeism at full length reaching its lowest point in the crucifixion of Christ. Today this doctrine of holiness is also present in the professing Christianity. We see it there, where separation is demanded out of a claim of superior holiness, a ‘I am holier than you’ attitude.
All their evil deeds are recorded in a book of remembrance before Him (cf. Revelation 20:12). He forgets nothing of it and will punish every atrocity with an absolute just judgment. The same goes for the faithful who may also know that there is a book of remembrance (Malachi 3:16). In it all faithfulness is mentioned, which will also be rewarded with absolute righteousness.