'Feast day' in the Bible

Blow up the trumpets in the new moon, upon our solemn feast day.

{Zayin} The LORD hath forsaken his own altar, and is wroth with his own sanctuary, and hath given the walls of their towers into the hands of the enemy. Their enemies made a noise in the house of the LORD, as it had been in a solemn feast day.

{Tav} My neighbours that are round about me hast thou called, as it were to a feast day: so that in the day of the LORD's wrath none escaped, neither was any left behind. Those that I had brought up and nourished, hath mine enemy destroyed.

But they said, "Not in the feast day, lest any business arise among the people."

Then as soon as he was come into Galilee, the Galileans received him, which had seen all the things that he did at Jerusalem at the feast. For they went also unto the feast day.