Exodus 23:14

Τρεῖς καιροὺς τοῦ ἐνιαυτοῦ ἑορτάσατέ μοι.

Three times of the year you shall celebrate a feast to me.

שׁלשׁ רגלים תחג לי בשׁנה׃

*   celebrate OR keep
*   feast OR festival