Jesus said in Matthew 4:4 to Satan that we live by every word that proceeds out of the mouth of God. Every word. Scripture is sufficient and God expects us to live everything in it, even the parts where we must apply principles. We are required to apply the principles. We don’t just throw our hands up in disgust, saying, this is just too hard, I don’t understand. Scripture deals with that excuse and it won’t be acceptable before God. He gave us the instruction to seek for the wisdom like hid treasure (Proverbs 2:4). He said that to rightly divide the Word of truth, we must be a workman, who is laboring (2 Timothy 2:15). A good pastor is said to be one who labors in the word and in doctrine (1 John 5:17). Scripture is accessible to us, as Paul wrote, it is nigh unto us, even in our mouth (Romans 10:8). He’s just saying it’s accessible with the metaphor in your mouth, because nothing is closer to you than something in your mouth. If a bug flies in your mouth, you understand that very well. God wants it all done.