Matthew 28:19-20
19 Go ye therefore, and teach 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, lo, I am with you alway, even unto the end of the world. Amen.
Acts 2:42, 46-47
42 And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers.
46 And they, continuing daily with one accord in the temple, and breaking bread from house to house, did eat their meat with gladness and singleness of heart,
47 Praising God, and having favour with all the people. And the Lord added to the church daily such as should be saved.