What is the meaning of Matthew 8:21-22?

21 And another of his disciples said unto him, Lord, suffer me first to go and bury my father. 22 But Jesus said unto him, Follow me; and let the dead bury their dead. (Matthew 8:21-22 KJV)

William Burkitt’s Commentary

We must not suppose by this prohibition that Christ disallows or disapproves of any civil office from one person to another, much less of a child to a parent, either living or dying: but he lets us know,

1. That no office of love and service to man, must be preferred before our duty to God, unto whom we owe our first obedience.

2. That lawful and decent offices become sinful, when they hinder greater duties.

3. That such as are called to the work and employment of the ministry, must mind that alone, and leave inferior duties to inferior persons: as if our Saviour had said, Others will serve well enough to bury the dead; but thou that art a consecrated person must do that unto which thou art consecrated and set apart. Under the law the priest might not come near a dead corpse, nor meddle with the interment of their own parents; unto which our Saviour probably alludes.