en_tn/rev/14/01.md

I looked

Here "I" refers to John.

Lamb

This refers to Jesus. See how you translated this in Revelation 5:6.

144,000

See how you translated this in Revelation 7:4.

who had his name and his Father's name written on their foreheads

AT: "on whose foreheads the Lamb and his Father had written their names." (See: rc://en/ta/man/translate/figs-activepassive)