'Observed' in the Bible

They also observed the Festival of Tents as has been prescribed, offering a specific number of daily burnt offerings in accordance with the ordinance of each day.

Now a number of the priests, the Levities, and the leading officials of the elders who were very elderly had seen the former Temple with their own eyes. When they observed the foundation of the Temple being laid, they wept with a loud voice, while the rest of them shouted for joy.

The people of Israel -- the priests, the Levites, and the rest of the exiles -- observed the dedication of this temple of God with joy.

The exiles observed the Passover on the fourteenth day of the first month.

They observed the Festival of Unleavened Bread for seven days with joy, because the Lord had made them joyful, having changed the Assyrian king’s attitude toward them, so that he supported them in the work on the house of the God of Israel.

Now I assembled them at the river that runs to Ahava, where we camped for three days; and when I observed the people and the priests, I did not find any Levites there.