The first temple, having been a shadow of things that would later come, it is important to learn the ways of the new as previously represented by the first laws.
The first offering was of the days. The Sabbath(Ex 35:2). This would be of pure, unadulterated rest, signalling the rest awaited at the end of this age. Christ would later say that His coming was a fulfillment of this day. He was an answer to this continuous prophetic declaration by the law. We too await His coming, and never are we to Give God rest till He establishes this peace. He is the prince of peace, And His father is the King of the same principality. Christ was a Passover Lamb, His acceptance therefore, a declaration of His Kingdom.