For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.
I have discovered that there are three things that God cannot do.
He cannot change-He always was, He always is and He will always be.
God will not change for the sake of man, it is us that needs to change our ways for Him. The second thing that God cannot do is lie. God is always truthful and righteous, so He cannot lie. The third thing that God cannot do is allow sinners into Heaven. This is why we need to accept His Son and change our ways to His. He says that His ways are not our ways. May God continue to increase Himself in our lives and bless and anoint us all in His Holy Spirit. Your brother in Jesus--Arthur Fischer
THINGS GOD CANNOT DO
1. Fail
2. Do evil
3. Lie
4. Be tempted
5. Deny himself
6. Be unjust
7. Bypass sin
8. Force loving obedience