1. A jealous God (Ex 34:14)
    1 Cor 16:22, Gal 1:8-9,

God is a jealous God. So we must not bow down to other gods. (Ex 34:14)

Ex 34:14 For thou shalt worship no other god: for the Lord, whose name is Jealous, is a jealous God:

Those who do not love Jesus will be cursed. (1 Corinthians 16:22)

1 Corinthians 16:22 If any man love not the Lord Jesus Christ, let him be Anathema Maranatha.

Cursed are those who preach any gospel other than the gospel that Jesus is the Christ. (Gal 1:8-9)

Gal 1:8 But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.
9 As we said before, so say I now again, if any man preach any other gospel unto you than that ye have received, let him be accursed.