"And I saw another sign in heaven, great and marvelous, seven angels having the seven last plagues; for in them is filled up the wrath of God…and the seven angels came out of the temple, having the seven plagues, clothed in pure and white linen, and having their breasts girded with golden girdles. And one of the four beasts gave unto the seven angels seven golden vials full of the wrath of God, who liveth for ever and ever."

"When our spiritual mind comprehends that God has entered into a living covenant with all His people, then we are able to understand clearly why God would send His seven-angels-ministry to pour out the vials of plagues upon His people. We are living in the hour when God has a controversy with His people because they are not keeping the covenant! He is leading, but they are not following! He is speaking, but they are not listening! He is calling, but they are not responding! He has redeemed them for a high and holy purpose, but they have other plans. They expect to be blessed, but they are not obedient. They are living far beneath their privileges as the people of God, they have polluted the sanctuary, they have walked after the flesh instead of the spirit, they have mistaken the soulical for the spiritual, and have preferred religion over reality."

Much more in the link:

https://www.godfire.net/eby/rev177.html