18 And Jesus coming, spoke to them, saying: All power is given to me in heaven and in earth. 19 Going therefore, teach ye all nations; baptizing them in the name of the Father, and of the Son, and of the Holy Ghost. 20 Teaching them to observe all things whatsoever I have commanded you: and behold I am with you all days, even to the consummation of the world. (St. Matthew 28)
40 And with very many other words did he testify and exhort them, saying: Save yourselves from this perverse generation. 41 They therefore that received his word, were baptized; and there were added in that day about three thousand souls. 42 And they were persevering in the doctrine of the apostles, and in the communication of the breaking of bread, and in prayers. (Acts 2)
14 I write not these things to confound you; but I admonish you as my dearest children. 15 For if you have ten thousand instructors in Christ, yet not many fathers. For in Christ Jesus, by the gospel, I have begotten you. 16 Wherefore I beseech you, be ye followers of me, as I also am of Christ. 17 For this cause have I sent to you Timothy, who is my dearest son and faithful in the Lord; who will put you in mind of my ways, which are in Christ Jesus; as I teach everywhere in every church. (1 Corinthians 4)