30 But the Pharisees and the experts in the law rejected God’s purpose for themselves, because they had not been baptized by John.)

Read Luke 7:30 Using Other Translations

But the Pharisees and lawyers rejected the counsel of God against themselves, being not baptized of him.
but the Pharisees and the lawyers rejected the purpose of God for themselves, not having been baptized by him.)
But the Pharisees and experts in religious law rejected God’s plan for them, for they had refused John’s baptism.