The seventh month was the most holy month of all in the Hebrew calendar year. Even more so, than the first month, the month of the Passover and the feast of unleavened bread. In the seventh month, atonement was made before and on the mercy seat and the sins of the people were put on the scapegoat and taken away. The feast began with the blowing of trumpets on the first day (new moon) of the seventh month and went on for ten days. The feast of the trumpets began with a holy convocation and sacrifices and concludes with the day of atonement on the seventh-day. (see Lev 16:29-34) The autumn feast began just five days later on the fifteenth day of the seventh month. It was a seven day feast, which concluded with a special sabbatical rest, not on the seventh-day but on the eighth day.
The apostle Paul related Jesus death, burial and resurrection to the day of atonement. (see Romans 3:21-26) Isn’t interesting that following the day of atonement was a feast that lasted seven days, followed by a command to have a solemn assembly on the eight day. Jesus was crucified on the sixth-day and on the seventh-day his body laid in the tomb. It was on the eight-day, that he rose again and appeared to his disciples, bodily resurrected from the dead. All of this accorded in the spring; therefore, all of these Jewish feast and their meaning are thus fulfilled in the person of Jesus the Christ, the Son of God.