So then, the darkening of the sun and the
moon comes before the Great and Notable
Day of the Lord.

In Acts 2:19-20, Peter refers to the

prophecy of Joel:



"And I will show
wonders in heaven;
and
signs in the earth

beneath; blood,
fire and
vapor of smoke;

the sun
shall be turned
into darkness, and the moon into blood,
before the great and notable day of the
Lord come."

The sixth seal marks the end of the

Great Tribulation and at the same time
brings us to the Day of God's wrath.