God is One, Yet Distinguished in Three Persons

Ye are my witnesses, saith the LORD, and my servant whom I have chosen: that ye may know and believe me, and understand that I am            he: before me there was no God formed, neither shall there be after me (Isaiah 43:10).  For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one (1John 5:7).