What doth every sin deserve?

Answer

Every sin deserveth God's wrath and curse, both in this life and that which is to come (; ; ; ; ).

Read the 5 proof texts (KJV)

Ephesians 5:6: Let no man deceive you with vain words: for because of these things cometh the wrath of God upon the children of disobedience.
Galatians 3:10: For as many as are of the works of the law are under the curse: for it is written, Cursed [is] every one that continueth not in all things which are written in the book of the law to do them.
Lamentations 3:39: Wherefore doth a living man complain, a man for the punishment of his sins?
Matthew 25:41: Then shall he say also unto them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels:
Romans 6:23: For the wages of sin [is] death; but the gift of God [is] eternal life through Jesus Christ our Lord.