Two of satan's three temptations began with the words, "If you be the Son of God."
Jesus was God, but he did have a human body that had to grow in the knowledge and wisdom of God (John 1:1; 1 Timothy 3:16; Luke 2:52). It took faith for the physical mind of Jesus to believe the witness of the Spirit within Him that He was the Messiah. Satan was attacking the most basic of His beliefs. This must have been a temptation to Jesus or satan would not have used it.
Satan is very subtle in his temptations. It may have looked like he was trying to get Jesus to perform a miracle, but he was actually trying to make Jesus waiver in His faith of who He was. He tried to get Jesus to draw on the supernatural power of God to confirm it to the devil and Himself.
We sometimes fall for this trick of the devil. We may say that we are arguing for some truth of the gospel, but many times we are hoping to convince ourselves. Someone who really knows who they are and what they believe, doesn't have to prove anything to anyone.
Isaiah 30:15 says, "For thus saith the Lord GOD, the Holy One of Israel; In returning and rest shall ye be saved; in quietness and in confidence shall be your strength..." We must let the Lord build our confidence in who we are in Him.
