Why did the Baptism of the Holy Ghost occur on the Day of Pentecost?
The Day of Pentecost was the completion of the feast of weeks, which was synonymous with the Israelites’ deliverance (salvation) from Egypt. Two loaves of bread were waved, which speak of the fact His plan of salvation was provided for both Jews and Gentiles. The Day of Pentecost was a feast day that commemorated the giving of the law on Mount Sinai in the Old Testament. The law was written on stone. In the New Testament the law was written on men’s hearts when He filled them with His Spirit. In the Old Testament, it was prophesied that He would write His laws on the “inward parts” and in their “hearts” (Jer. 31:31-33, Heb 8:7-13). All that entered into this New Covenant would know the Lord personally (Jer. 31:31-34). The Day of Pentecost marked the beginning of the Old Covenant and the New Covenant. The Holy Ghost experience is the essence of the New Covenant replacing the Old Covenant of the law (II Cor. 3:3-18). The New Covenant is established on better promises (Heb. 8:6).