'Observed' in the Bible

While the Israelis remained encamped at Gilgal on the plains of Jericho, they observed the Passover during the evening of the fourteenth day of the month.

When Joshua and the entire fighting force of Israel observed that the men who had been in ambush had seized the city and that the smoke from the city was rising, they turned around and attacked the men of Ai.

and he said to them, "You have observed all that Moses Yahweh's servant commanded you, and you have listened to my voice in all that I have commanded you;

you have not forsaken your kinsmen these many days, up to this day, and you have observed the obligation of the command of Yahweh your God.