The Christian faith is fundamentally incoherent. The reason is simple.
1. God is described as omnibenevolent – perfectly good, loving, just, and merciful.
2. Purportedly, God created humanity with the overarching command that we worship him. According to most (not all) Christians, those who fail to do so (or who simply disbelieve) are punished for all eternity. Eternal punishment for the sin of mere disbelief is neither loving, nor just, nor merciful. Even if one rejects the concept of hell as a place of eternal torment, the Bible itself (especially the Old Testament) describes a God who is anything but good. Refer to my post: “God is Not Good.”
3. Because 1 and 2 are contradictory, the Christians’ own description of their God’s nature is fundamentally incoherent, and therefore Christianity itself is incoherent.