en_tn_condensed/psa/119/003.md

General Information:

Most of this psalm is addressed to God, and the words "you" and "your" almost always refer to him.

They do no wrong

They do not disobey Yahweh.

they walk in his ways

"they walk in Yahweh's ways." Here their behavior is spoken of as "walking," and the way God wants them to behave is spoken of as "his ways." AT: "they behave as Yahweh wants them to"

keep your instructions

"obey all the things that you have declared that we should do"

carefully observe them

This is to carefully know and understand the commandments and to obey those commandments.