en_tn/psa/119/018.md

Open my eyes so that I may see

The author speaks of gaining understanding, knowledge and wisdom as being able to see. AT: Help me to understand" (See: rc://en/ta/man/translate/figs-metaphor)

marvelous things in your law

The author speaks of insight into the law as objects to marvel at. (See: rc://en/ta/man/translate/figs-metaphor)

in your law

"in your instructions" or "in your commands"