A common error for those that do not understand the Trinity, which indeed is a very complex study even for the most learned of theologians.972
Jesus was not..is not God the Father
Even as true worshipers of God recognize that the will or desire of God is superior to their own will or desire, Jesus acknowledged God's will was superior to his own. In acknowledging this, Jesus indicates that he was inferior to God. Thus, at the time just before his death, the Bible says, at Luke 22:41 & 42:
"And he was withdrawn from them about a stone's cast, and kneeled down, and prayed, saying, Father, if thou be willing, remove this cup from me: nevertheless, not my will, but thine, be done."
At the time of Jesus' resurrection from the dead, Jesus spoke to Mary Magdalene, as described in the Book of John, at chapter 20 and verse 17, which reads:
"Jesus saith unto her, Touch me not; for I am not yet ascended to my Father: but go to my brethren, and say unto them, I ascend unto my Father, and your Father; and to my God, and your God."
Inasmuch as Mary was not ascending, but Jesus was, this passage is telling us that Jesus was going to ascend to heaven, where his father already was - the one he describes here as his God.
But Jesus is God. The human aspect of Jesus is not God, and thus the above passages you speak of. But the spiritual aspect is God. This is why so many have trouble understanding this, and why the heresy of Arianism has run so rampant throughout history. Only God can forgive all for sins, only God can make this ultimate sacrifice, no lesser being can.
Are you a Jehovah Witness, or Mormon then brother?