We might think of the faith and trust one has in a loving father. If a skeptic questioned whether your father would really help you in a crisis, you might not be able to convince him that your father is trustworthy.
لَا يَقْتَصِرُ ٱلْإِيمَانَ عَلَى مُجَرَّدِ ٱلِٱعْتِرَافِ بِأَنَّ خَالِقًا ذَكِيًّا هُوَ مَصْدَرُ ٱلْحَيَاةِ وَٱلْكَوْنِ .‏