Connecting Statement:

The part of the story from the previous chapter continues. Jesus reclines at the table with his disciples and continues to speak to them.

you will not fall away

Here the phrase "fall away" implies to stop putting one's trust in Jesus. You can translate this in an active form. Alternate translation: "you will not stop trusting in me because of the difficulties you must face" (See: rc://en/ta/man/translate/figs-explicit and rc://en/ta/man/translate/figs-activepassive)