“Then I saw another angel ascending from the east, having the seal of the living God. And he cried with a loud voice to the four angels to whom it was granted to harm the earth and the sea, saying, “Do not harm the earth, the sea, or the trees till we have sealed the servants of our God on their foreheads.”” Revelation 7:2-3 nkjv

You should be very afraid if you don’t know God. Because, not knowing God means that you are not going to be with him,and you will be eternally separate from God, who is love. You will not feel the love, but, you will feel loneliness that never goes again eternally.