Luke 9:60

Jesus said unto him, let the dead bury the dead
(See Gill on Matthew 8:22).

but go thou and preach the kingdom of God;
that the kingdom of heaven is at hand, the Gospel dispensation is now ushering in, and the kingdom of the Messiah is setting up; go and publish the things concerning the kingdom of grace, which lies not in outward rites and ceremonies, but in righteousness and peace, and joy in the Holy Ghost; and declare the things relating to the kingdom of glory, and eternal life and happiness; assert, that unless a man is born again, and has a better righteousness than his own, he is neither fit for, nor has he a right unto everlasting bliss.