Exodus 34:23

“Three times a year you shall celebrate a feast to Me.

“Three times a year all your males shall appear before the Lord Yahweh.

“Three times in a year all your males shall appear before Yahweh your God in the place which He chooses, at the Feast of Unleavened Bread and at the Feast of Weeks and at the Feast of Booths, and they shall not appear before Yahweh empty-handed.

Now that man would go up from his city yearly to worship and to sacrifice to Yahweh of hosts in Shiloh. And the two sons of Eli, Hophni and Phinehas, were priests to Yahweh there.

and did so according to the daily rule, offering them up according to the commandment of Moses, for the sabbaths, the new moons and the three annual feasts—the Feast of Unleavened Bread, the Feast of Weeks and the Feast of Booths.

They go from strength to strength, Each one of them appears before God in Zion.

“But when the people of the land come before Yahweh at the appointed times, he who enters by way of the north gate to worship shall go out by way of the south gate. And he who enters by way of the south gate shall go out by way of the north gate. No one shall return by way of the gate by which he entered but shall go straight out.