There was no annulment in Judaism because there was no need for one. Divorce was relatively easy and not prohibited. In the New Testament a word meaning “annulment” did not exist for that reason.

The exception in Matthew to the indissolubility of marriage for - and the word used depends on the translation - adultery, sexual immorality, etc. is the Koine “porneia”. A better phrasing might be “sexual depravity”. What it is describing is someone who is incapable of contracting a marriage because they cannot be monogamous.

And that describes the basis for an annulment, called a “divorce” since that word did exist.

The Eucharist is food for the journey, but to eat it while in state of sin makes it a spiritual poison.

1 Corinthians 11: 27 So then, whoever eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty of sinning against the body and blood of the Lord. 28 Everyone ought to examine themselves before they eat of the bread and drink from the cup.