the true God is not in peace with the "darkness", namely because there is a "darkness(wicked/evil one)" in the universe that fights against the true "Light", an entity that is also (as with the true One) indefinitely existing throughout the time's infinity, IOW, it cannot be destroyed for all the time's infinity, but as for its permanent removal, it can only be closed and locked in a special structure until the end of the single(little) eternity, which is a period, albeit longer than the millennium (just as the millennium is longer than the century), that is why Jesus says:
Luke 12:49-51 "I have come to cast fire upon the earth; and how I wish it were already kindled! But I have a baptism to undergo, and how distressed I am until it is accomplished! Do you suppose that I came to grant peace on earth? I tell you, no, but rather division;"
the world of human(666) spirituality/religiosity has lied about the might of God, the true One is really omnipotent to do all kinds of good things, but only within the eternity, because there is a beginning and end even of His life, not that He ever dies completely and permanently, His "death" at the end is only partial, because He always remains alive, He is the only entity/being that lives throughout the time's infinity, however, the end of His life cycle is unfortunately accompanied by a release of the "darkness" from that place (in which God closes and locks its manifestation) as well as by a disintegration of His creation...
Blessings