God Himself, the Source, the Fountain,
“Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.” (John 14:6)
“And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father.” (Galatians 4:6)
“In the last day, that great day of the feast, Jesus stood and cried, saying, If any man thirst, let him come unto me, and drink. He that believeth on me, as the scripture hath said, out of his belly shall flow rivers of living water. (But this spake he of the Spirit, which they that believe on him should receive: for the Holy Ghost was not yet given; because that Jesus was not yet glorified.)” (John 7:37-39)
“But whosoever drinketh of the water that I shall give him shall never thirst; but the water that I shall give him shall be in him a well of water springing up into everlasting life.” (John 4:14)