Satan is synonymous with Lucifer. The name Lucifer would be what at one time would have been the name he received from God. Once the rebellion, Lucifer was above all categories of angels since it was the most beautiful of all these. The term "Lucifer" means "Bearer of light", associating it with the "Morning Star" or "Star of the Dawn".
Lucifer (from the Hebrew "HEYLEL" in Latin "Carrier of light") was the most beautiful angel of all, before falling was the protective cherub, musician, believed to be the director of praise to God. His position was the most exalted of all the angelic beings that God created.
Isaiah 14: 12-14
12 How you fell from heaven, O Lucifer, son of the morning! You were cut down by land, you who weakened the nations.
13 You who said in your heart, I will ascend to heaven; on high, next to the stars of God, I will raise my throne, and on the mount of the testimony I will sit, on the sides of the north;
14 I will ascend above the heights of the clouds, and be like the Most High.
Psalm 72:13
13 He will have mercy on the poor and the needy, and will save the life of the poor
14 From deception and violence he will redeem their souls, And their blood will be precious before their eyes.
Isaiah 55: 10-11
10 For as the rain and the snow come down from the heavens, and do not return there, but water the earth, and cause it to germinate and produce, and give seed to the sower, and bread to the eater,
11 So shall my word be that goes forth from my mouth; It will not return to me empty, but it will do what I want, and it will be prospered in that for which I sent it.
John 12:31
31 Now is the judgment of this world; now the prince of this world will be cast out.
