1. Christianity teaches that God is righteous and treats all of his creatures with perfect justice.
“For the LORD is righteous, he loves justice” –Psalm 11:7; “Righteousness and justice are the foundation of your throne.” –Psalm 89:14; “He will judge the world in righteousness and the peoples with equity.” –Psalm 98:9; “I now realize how true it is that God does not show favoritism.” –Acts 10:34
2. In Islam, Allah does as he pleases. Guiding some men to go the right way and tricking others to go astray.
“If we so willed, we could have brought every soul its true guidance, but the word from me will come true: “I will fill hell with the jinn and mankind together” “. -Sura 32:13
Comment: For Muslims: Who can rely upon a god like Allah? Who can say whether he actually led Muhammad on the right path? For Christians: Our God is righteous and offers justice and mercy to all.
*References: “Islam and The Bible: Why Two Faiths Collide”, By David Goldmann (Chicago: Moody Pub., 2004, 174 pgs.) Pg. 31;
“Unveiling Islam”, by Ergun Mehmet Caner & Emir Fethi Caner (Grandrapids, MI: Kregel Pub., 2002, 256 pgs.) Pg. 243