"And among the people is he who worships Allah on an edge [harf]"—the exegesis of Mujahid and Qatadah is: on the basis of doubt. "If good befalls him, he is reassured by it," meaning: he is content. "But if a trial befalls him, he turns on his face," meaning: he abandons what he was upon. He is the hypocrite; if he sees ease and tranquility in Islam, his soul is satisfied with the prosperity he receives from that ease, and he says: "I am with you and I am one of you." But if he sees hardship or affliction in Islam, he does not endure the calamity, and he turns back on his face as a disbeliever, abandoning what he was upon.