20 YHWH said to Moses, “Rise up early in the morning, and stand before Pharaoh; behold, he comes out to the water; and tell him, ‘This is what YHWH says, “Let my people go, that they may serve me. 21 Else, if you will not let my people go, behold, I will send swarms of flies on you, and on your servants, and on your people, and into your houses. The houses of the Egyptians shall be full of swarms of flies, and also the ground they are on. 22 I will set apart in that day the land of Goshen, in which my people dwell, that no swarms of flies shall be there, to the end you may know that I am YHWH on the earth. 23 I will put a division between my people and your people. This sign shall happen by tomorrow.”’” Exodus 8:20-23WEB
This passage contains a positive command, directed toward Pharaoh, through Moses: 'Go and tell Pharaoh to let my people go".
The command is followed by an explanation of God's purpose for them, "that they may serve me", and of the penalty which God intends to impose on a disobedient Pharaoh.
It is relevant to an understanding of Stewardship, because it relates to Pharaoh's stewardship over God's possession Israel. It is relevant to an understanding of Prophecy because Moses is acting as prophet of God, relaying a direct revelation from God to Pharaoh.
The command to Moses and Aaron was fulfilled by them when they obeyed God and delivered his message to Pharaoh. The command to Pharaoh was later fulfilled by a begrudging Pharaoh in the face of God's mighty hand of judgement.