Mark Batterson said this quote

That is the heavenly Father's deepest impulse toward us. You are the apple of His eye. And anyone who messes with you messes with Him. His protective instincts are most poignantly seen at the cross - the place where unconditional love and omnipotent power for the amalgam called amazing grace. That's where the Creator stepped between every fallen sinner and the fallen angel, Satan. That's where the Advocate took His stand against the Accuser of the brethren. The Sinless Son of God took the fall for us.The cross is God's way of saying, You are worth dying for.