'Everything' in the Bible

One person believes in eating everything, but the weak person eats only vegetables.

The one who eats everything must not despise the one who does not, and the one who abstains must not judge the one who eats everything, for God has accepted him.

But you who eat vegetables only -- why do you judge your brother or sister? And you who eat everything -- why do you despise your brother or sister? For we will all stand before the judgment seat of God.

For everything that was written in former times was written for our instruction, so that through endurance and through encouragement of the scriptures we may have hope.