People are not able to repent unless the Spirit of God wills their completely depraved heart to do so; thus says Calvinism, but not the Bible.
“Then he began to rebuke the cities in which most of his mighty works had been done, because they did not repent:”Matthew 11:20 NKJV
The failure of repentance falls upon the individual, not the Spirit. Why rebuke someone if such is not the case? Indeed, the grace of God leads to repentance (Romans 2:4), but being encouraged to repent is not the same as repentance being enforced upon the individual. The Spirit engages and invites (Revelation 22:17), he does not handcuff and coerce.
If an individual could only repent by the will of the Spirit then why did Jesus, by the Spirit, preach like people had a choice in the matter? The only honest answer is because they did have a choice!
“I tell you, no; but unless you repent you will all likewise perish.” (Luke 13:3 NKJV)