1In the presence of God and of Christ Jesus, who will judge the living and the dead, and in view of his appearing and his kingdom, I give you this charge: 2Preach the word; be prepared in season and out of season; correct, rebuke and encourage—with great patience and careful instruction. 3For the time will come when people will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear. 4They will turn their ears away from the truth and turn aside to myths. 5But you, keep your head in all situations, endure hardship, do the work of an evangelist, discharge all the duties of your ministry.
From 2 Timothy 4. And mind the warnings!