Even today this stream appears in the dramatic and gigantic gatherings at conferences, praise gatherings, conventions, and rallies and concerts. Old Testament worship was not just about sacrificing animals for the sins of the people. It was also about remembering God s mighty acts . Indeed one might argue that Old Testament worship was primarily about recalling God s past faithfulness. The most common way we human beings tend to remember the past is through anniversary memorial celebrations that is, celebrating each year at the same time what God did in the past at that time.
Humans seem naturally inclined to use time to remember and celebrate the past.
It is from this inclination that birthday, anniversary, Independence days or other national holidays spring. Holy days are a means of remembering and memorializing what God has done in the past. Besides these feast days the Jews observed a Sabbath every week so both their annual calendar and the weekly calendar provided a means of worship and remembering. This festivals and feasts stream will flow into the early church. We don t know.