en_tn/rev/01/10.md

I was in the Spirit

John speaks of being influenced by God's Spirit as if he were in the Spirit. Alternate translation: "I was influenced by the Spirit" or "The Spirit influenced me" (See: rc://en/ta/man/jit/figs-idiom)

the Lord's day

the day of worship for believers in Christ

loud voice like a trumpet

The voice was so loud it sounded like a trumpet. (See: rc://en/ta/man/jit/figs-simile)

trumpet

This refers to an instrument for producing music or for calling people to gather together for an announcement or meeting.