God is a Spirit: and they that worship him must worship him in spirit and in truth. - John 4:24
And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers. - Acts 2:42
Let us hold fast the profession of our faith without wavering; (for he is faithful that promised;)
And let us consider one another to provoke unto love and to good works:
Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another: and so much the more, as ye see the day approaching. - Hebrews 10:23-25
And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth.
Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you always, even unto the end of the world. Amen. - Matthew 28:18-20
For the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ: - Ephesians 4:12
And the things that thou hast heard of me among many witnesses, the same commit thou to faithful men, who shall be able to teach others also. - II Timothy 2:2
And that repentance and remission of sins should be preached in his name among all nations, beginning at Jerusalem. - Luke 24-47
But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth. - Acts 1:8