Testament of Our Lord, Book I 1
Presented as post-resurrection teaching given by Christ to the apostles; actual author unknown. Scholars have proposed dates ranging from the 2nd to the 5th century AD, with most now favoring a 4th-5th century composition (possibly Cappadocian in origin) that draws on older, 3rd-century source material. Combines an apocalyptic vision of the end times with detailed instructions on church order, liturgy, and ministry.
1And we returned answer, saying, Lord, what is the Holy Ghost, and what is His power, whom Thou badest us to ask for? And our Lord said unto us, Verily I say unto you that ye shall not be the children of the light except by the Holy Ghost. And we returned answer to Him, and said, O our Lord, give us this [Spirit]. And immediately Jesus breathed on us. And after we had received the Holy Ghost, He said unto us, Verily I say unto you, that ye who have been made disciples unto the kingdom of heaven, and who have believed in Me with undoubting heart, and have cleaved unto Me, shall be with Me; and all those who through you know and do the will of My Father, who keep My words and know My sufferings, shall be made holy, and shall dwell in the habitations of My Father, and shall be delivered from the evil days that are about to come; and I will be with them, shewing them My ways in which they shall live.
See also: John 20:22