Surely the Sovereign LORD does nothing without revealing his plan to his servants the prophets. Amos 3:7 (NIV)
The Reformation Study Bible says that God acts, God reveals himself and God interprets his actions through the prophets. In the first such instance,
God revealed His plans for Sodom and Gomorrah to Abraham, the first “prophet” so designated in Scripture (Gen 18:17, 20:7) Moses, the supreme Old Testament prophet, was called “the servant of the Lord” (Deut. 34:5). Subsequent prophets were characterized by the similar phrase, “my servants the prophets”
On this passage, Matthew Henry writes:
The secret of God is with them [the prophets]; it is in some sense with all the righteous (Prov. 3:32), with all that fear God (Ps. 25:14), but in a peculiar manner with the prophets, to whom the Spirit of prophecy is a Spirit of revelation. It would have put honour enough upon prophets if it had been only said that sometimes God is pleased to reveal to his prophets what he designs to do, but it speaks something very great to say that he does nothing but what he reveals to them, as if they were the men of his counsel. Shall I hide from Abraham, who is a prophet, the thing which I do? Gen. 18:17. God will therefore be sure to reckon with those that put contempt on the prophets, whom he puts this honour upon.
I no longer call you servants, because a servant does not know his master’s business. Instead, I have called you friends, for everything that I learned from my Father I have made known to you. John 15:15 (NIV)
There is a connection between this New Covenant verse and the Old Covenant verse quoted from Amos. Although we refer to Jesus’ closest followers as “The Twelve,” “disciples,” or even “apostles,” there is a real sense in which we could describe them as “prophets,” since they received considerable revelation of God Himself, even if we don’t speak of ‘the prophet Matthew,’ or ‘the prophet Nathaniel.’
However, at the same time, this verse breaks the connection between “prophets” and “servants,” because in this New Covenant, the relationship between God the Son and The Twelve is going to be more relational, hence “friends.” Again, the Reformation Study Bible states,
No longer do I call you servants – There is no previous record of Jesus Christ calling the disciples “servants,” except possibly 12:26; yet Jesus had a right to do this, as He had the right to be called “Lord” (13:13). “Friend” suggests a close relation, and the language of brotherhood is closer still (Heb. 2:10, 11).
all . . . I have made known – Christ did not have a higher revelation reserved for an inner group; He revealed Himself to the disciples unstintingly.
If the U.S. President wants to let people know about some plan or scheme or program the government is initiating, he can choose to make it known through his Press Secretary. We often see this man standing in the Press Briefing Room, and clearly he is speaking for the President. However, he is doing this as a servant.
But imagine if you knew the President as a friend. He might let you in on the same information, but he would be confiding in you as a friend. Then, when the information can be released, you would share it with your friends as you heard it, not under orders, or under a requirement to do so, but out of the overflow of your heart from what the head of state shared with you.
From the first days of creation, God asked Adam to name the animals, making him a partner in creation. In the New Testament we are called friends of God.
Click the link to read a previous post here containing the video for the song Friend of God.