Commands of Scripture

How should we decide what we read in Scripture that should be considered “commands of Scripture” to us?

Most of the people I hear using that phrase seem to have been taught which commands apply to us and which ones don’t. Everything that is recorded of Jesus commanding someone to do something can’t be an instruction to us. He spoke to demons, Pharisees, Sadducees, crowds, individuals, disciples and angels. It would be silly to think that any instruction He gave to anyone applies to us. He told Judas to betray Him. He told people to obey Pharisees.

It would also be silly to think that none of it was instruction to us, though. Is it even possible that the Spirit could be saying something to you that He is not saying to me? What about the possibility that He could, on different days, use the same Scripture to say two different things to me? Or, to say one thing to you and another thing to me?

You are My friends if you do what I command you.
(John 15:14 HCSB ©®)

In the same way the Spirit also joins to help in our weakness, because we do not know what to pray for as we should, but the Spirit Himself intercedes for us with unspoken groanings. And He who searches the hearts knows the Spirit’s mind-set, because He intercedes for the saints according to the will of God.
(Romans 8:26-27 HCSB ©®)

But as it is written:

What no eye has seen and no ear has heard,
and what has never come into a man’s heart,
is what God has prepared for those who love Him.

Now God has revealed them to us by the Spirit, for the Spirit searches everything, even the deep things of God. For who among men knows the concerns of a man except the spirit of the man that is in him? In the same way, no one knows the concerns of God except the Spirit of God. Now we have not received the spirit of the world, but the Spirit who is from God, in order to know what has been freely given to us by God. We also speak these things, not in words taught by human wisdom, but in those taught by the Spirit, explaining spiritual things to spiritual people. But the natural man does not welcome what comes from God’s Spirit, because it is foolishness to him; he is not able to know it since it is evaluated spiritually. The spiritual person, however, can evaluate everything, yet he himself cannot be evaluated by anyone. For:

who has known the Lord’s mind,
that he may instruct Him?

But we have the mind of Christ.
(1 Corinthians 2:9-16 HCSB ©®)