Who says to whom? “Thou art Christ, the Son of the Living God?”except

We need to have at least 2 or 3 witnesses to establish a matter

Matt 16:17, And Jesus answered and said unto him, Blessed art thou, Simon Barjona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven.

How many witness(es) do you see here?

Who is the first witness in Matthew 16:17?

Based on Matthew 16:17,

Father is in heaven, how can Father be a witness on earth?

1 John 4 : 15

Whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God

These are all who witnesses?

Where is the Father?

Father dwelleth in us, except