The holiday of Shavuot (חג השבועות) is called “Pentecost” in Christian tradition. The Greek word Pentecost (πεντηκοστή) means “the holiday of fifty days” that refers to the 50th day after the crucifixion of Yeshua when the Holy Spirit descended upon the disciples and when Peter first proclaimed the truth of salvation in Jerusalem (Acts 2:1-43). The Torah teaches that Shavuot is a major biblical holiday (it is one of the three “required festivals” of the LORD, see Exod. 23:14-17; Deut. 16:16) and therefore it behooves us to understand its significance as the climax of Passover itself — ‘the endpoint’ of the redemptive experience. Indeed, just as the blood of the lambs smeared on the door posts led directly to Sinai 50 days later, so the crucifixion of Yeshua led directly to the descent of the Holy Spirit to empower His followers to serve God under the new covenant of Zion.
There are two basic priestly rituals commanded for Shavuot: 1) the waving (i.e., tenufah: תנופה) of the two loaves of (new) wheat bread (called shtei ha’lechem: שתי הלחם), and 2) the offering of peace sacrifices (i.e., korban shelamim: קורבן שלמים). Both of these aspects of the priestly service were fulfilled in the greater sacrifice of Yeshua made on our behalf. Moreover, just as worshipers at the Temple would present bikkurim (בכורים) – their choicest first fruits – and attest to God’s faithfulness before the altar (Deut. 26:3), so we are called to walk in the fruit of the Spirit (פרי רוח הקודש) and to proclaim the message of God’s faithful love for us.