Malachi 3:1 (KJV) Behold, I will send my messenger, and he shall prepare the way before me: and the Lord, whom ye seek, shall suddenly come to his temple, even the messenger of the covenant, whom ye delight in: behold, he shall come, saith the Lord of hosts.
Luke 4:43 And he said unto them, I must preach the kingdom of God to other cities also: for therefore am I sent.