en_tn/jhn/18/11.md

sheath

the cover for a sharp knife or sword, so the knife will not cut the owner

Should I not drink the cup that the Father has given me?

This remark appears in the form of a question to add emphasis to Jesus' statement. Alternate translation: "I must surely drink the cup that the Father has given to me!" (See: rc://en/ta/man/translate/figs-rquestion)

the cup

Here "cup" is a metaphor that refers to the suffering that Jesus must endure. (See: rc://en/ta/man/translate/figs-metaphor)

Father

This is an important title for God. (See: rc://en/ta/man/translate/guidelines-sonofgodprinciples)