1 Samuel 20:5,6
And David said to Jonathan, Behold, to morrow is the new moon, and I should not fail to sit with the king at meat: but let me go, that I may hide myself in the field to the third day at even.
Torrey's Topical Textbook—AKJV

Psalm 81:3
Blow up the trumpet in the new moon, in the time appointed, on our solemn feast day.
Torrey's Topical Textbook—AKJV