One should do nothing with a false heart.
More Egyptian Proverbs:
Honorable is the person who is aware of his power, yet refrains from inflicting bad things onto others.Egyptian
Do not rejoice over what has not yet happened.
Egyptian
Your friend chooses pebbles for you and your enemy counts your faults.
Egyptian
If you have to drag a dog to the hunt, neither he nor his hunting is any good.
Egyptian
If you live in a glass house, don't throw stones.
Egyptian
May no lies be spoken against me in the presence of God.
Egyptian