Exodus 23:17 in the King James Version
Three times in the year all thy males shall appear before the Lord GOD.
Context
16 And the feast of harvest, the first fruits of your labors, which you sow in the field; and the feast of ingathering, at the end of the year, when you gather in your labors out of the field.
17 Three times in the year all your males shall appear before the Lord GOD.
18 “You shall not offer the blood of my sacrifice with leavened bread. The fat of my feast shall not remain all night until the morning.