Luke 4:43
"And he said unto them, I must preach the kingdom of God to other cities also: for therefore am I sent."
Cross References (ranked by relevance)
Preach the word; be instant in season, out of season; reprove, rebuke, exhort with all longsuffering and doctrine.
How God anointed Jesus of Nazareth with the Holy Ghost and with power: who went about doing good, and healing all that were oppressed of the devil; for God was with him.
Then said Jesus to them again, Peace be unto you: as my Father hath sent me, even so send I you.
I must work the works of him that sent me, while it is day: the night cometh, when no man can work.
Come ye near unto me, hear ye this; I have not spoken in secret from the beginning; from the time that it was, there am I: and now the Lord GOD, and his Spirit, hath sent me.