Because he himself suffered when he was tempted, he is able to help those who are being tempted.
The mystery of Jesus is great – He is fully God and fully man. His Divinity has the power to deliver us, His humanity brings Him to our side when we need His help. Because Jesus experienced the same suffering that we do when we face temptation, He is aware of the anxiety and fear that we face. Therefore run to Jesus when you are tempted – for He has the power and the compassion to help.