The following quote is from John Frame’s Systematic Theology. I came across it quoted in Tim Challies blog. In a day when many will dismiss the scriptures, looking down on them as something inferior, we need to be encouraged to again respect their authority.
When God Commands, we are to obey. When he asserts, we are to believe him. When he promises, we are to embrace and trust those promises. Thus, we respond to the sheer authority of God’s word.
Adam and Eve had no way of testing what God told them about the forbidden fruit. They couldn’t work any experiment that would show them whether God had rightly predicted the effects of the fruit. They simply had to take God at his word. Satan interposed a contrary interpretation, but the first couple should not have taken his opinion seriously. They should simply have believed God. They did not, of course. They sided with Satan rather than God–or, perhaps better, they claimed that their own authority transcended God’s. That is to say, they claimed autonomy. They claimed that they themselves were the highest authority, the ultimate criterion of truth and right.
The NT praises Noah (Heb. 11:7), Abraham (Rom. 4:1-25; Heb. 11:8-19), and many others because of their faith, and their faith was grounded in God’s word. They simply believed what God said and obeyed him. So for new covenant believers: if they love Jesus, they will do what he says (John 14:15, 21, 23; 15:7, 10, 14; 17:6, 17; 1 John 2:3-5; 3:22; 5:2-3; 2 John 6).
So we should think of God’s word as a personal communication from him to us. In DWG, I presented this as a general way of thinking about the word of God: the personal-word model. Think of God speaking to you as a real person would–as directly as your parents, your spouse, your children, your friends. Many in Scripture heard such speech from God, such as Noah, Abraham, and Moses.
And when God speaks, his word carries authority. This means that it imposes obligations. When God commands, he expects us to obey. When he brings information, we are to believe him. When he promises, we should embrace his promises.
If God really talked to you, as he did to Abraham, you would not (if you know what is best for you) criticize his words or disagree with him.