Have you been here for any amount of time and observed that? Those who do are the minority! Most completely ignore that which is written in the context it was written and to whom.
I have observed for many years people believing the words on the page, but as understood, or misunderstood..by them.
Believing the words is not enough.
Plenty of people believe Acts 2:38, for example.
Problem?
Acts 8:30 And Philip ran thither to him, and heard him read the prophet Esaias, and said, Understandest thou what thou readest? 8:31 And he said, How can I, except some man should guide me? And he desired Philip that he would come up and sit with him. 8:32 The place of the scripture which he read was this, He was led as a sheep to the slaughter; and like a lamb dumb before his shearer, so opened he not his mouth: 8:33 In his humiliation his judgment was taken away: and who shall declare his generation? for his life is taken from the earth. 8:34 And the eunuch answered Philip, and said, I pray thee, of whom speaketh the prophet this? of himself, or of some other man? 8:35 Then Philip opened his mouth, and began at the same scripture, and preached unto him Jesus. 8:36 And as they went on their way, they came unto a certain water: and the eunuch said, See, here is water; what doth hinder me to be baptized? 8:37 And Philip said, If thou believest with all thine heart, thou mayest. And he answered and said, I believe that Jesus Christ is the Son of God.
Acts 17:11 These were more noble than those in Thessalonica, in that they received the word with all readiness of mind, and searched the scriptures daily, whether those things were so. 17:12 Therefore many of them believed; also of honourable women which were Greeks, and of men, not a few.
1 Corinthians 14:15 What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also.
Ephesians 5:17 Wherefore be ye not unwise, but understanding what the will of the Lord is.
Believing is not enough; proper understanding is just as important.