Exodus 15:17

15:17 You will bring them in and plant them in the mountain of your inheritance,

in the place you made for your residence, O Lord,

the sanctuary, O Lord, that your hands have established.

Exodus 23:17

23:17 At three times in the year all your males will appear before the Lord God.

Exodus 34:23

34:23 At three times in the year all your men must appear before the Lord God, the God of Israel.