You know sis Philp asked Jesus almost the same question, show us the Father. here check this out for yourself and see sis.( John 14:6-14!!) God is Spirit,Jesus is the physical representation of God. So it was Jesus walking and talking with adam.The burning bush showed the Spirit,God the Father himself, for Moses nor any man has even seen the Father! Only through his son. Who is God in the flesh.Remember when Jesus was asked by a ruler saying Good teacher what shall I do to inherit eternal life?And Jesus said Why do you call me good? No one is good except God.( luke 18:18-19) Because Jesus became a curse because of his flesh just because he loved us so much!!( gal 3:13-14) since the ruler was not seeing God in his perfect form, this is why Jesus spoke as he did to him. Hope this helps you sis.