We've all heard the expression, "If it isn't broken, don't fix it!" Applying this simple rule to the Hebrew Calendar could eliminate much confusion. Some people and church groups that keep the Holy Days of God are convinced that the Hebrew Calendar is defective. They claim that its rules for calculating the feast days of God are not based on Scripture but on Jewish tradition. They are adamantly opposed to the rules of postponement used in the Hebrew Calendar, which they view as an invention of men.

In denouncing these rules, they assert that the "postponement" of the new moon of the seventh month (Tishri) was instituted by the Jews for political or physical convenience. Is the calculated Hebrew Calendar really "broken," as more and more are beginning to teach? How can we know the truth? If it is possible to show that it is in complete harmony with the astronomical cycles that God has ordained, and that it fulfills every Scriptural requirement for determining His appointed times, the supposed need to modify the calculated calendar will be eliminated. In order to test the validity of the existing calendar, let us examine some basic Scriptural principles that govern all determinations of time.