Romans 10:2

Romans 10:2. For I bear them record that they have a zeal of God, but not according to knowledge.

It is not sufficient for a man to be sincere in his zeal for God; sincerity must be according to knowledge if it is to be of any value. If a man travels to the North, his sincere belief that he is on the right road will not bring him to his destination in the South. If a man, in all sincerity, drinks poison under the belief that it is a cheering cordial, it will kill him, notwithstanding his sincerity; and if a man sincerely believes a lie, it will turn out to be a lie notwithstanding his sincerity. So that it is not enough to be sincerely zealous for God, or sincerely anxious to be saved; but you must seek salvation in God’s revealed way if your search is to be a successful one.