Jewish tradition claims that the next seven psalms (93-99) anticipated some of the works of the Messiah. Psalm 93 is said to have been used in post-captivity Temple services and may have been written during Sennacherib's invasion (2Ki. 18:13-19:37).
Psalms 93:5
The atmosphere of God's eternal reign is holiness. Holiness will be the oxygen of heaven. Meanwhile, God's perfect moral character highlights his glory and can be seen everywhere. God will never do anything that is not morally perfect. This reassures us that we can trust him, yet it places a demand on us. Our desire to be holy (dedicated to God and morally clean) is our only suitable response. We must never use unholy means to reach a holy goal because God says, "You must be holy because I, the LORD your God, am holy" (Lev 19:2).