THE EARNEST OF OUR INHERITANCE IS A PLEDGE, OR DOWNPAYMENT, OF THE COMPLETE INHERITANCE. IT IS THE BAPTISM WITH THE HOLY SPIRIT!
Ephesians 1:12-14 That we should be to the praise of his glory, who first trusted in Christ. In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise, which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory.
An excerpt from Feast of Tabernacles by George H. Warnock
CHAPTER 5 – THE FEAST OF PENTECOST
The Feast of Pentecost was the second of Israel’s three annual Feasts. As the Scriptures reveal, the Feast is also called the Feast of Harvest, of Firstfruits, or of Weeks. Pentecost is the New Testament name, and is so called because Pentecost means “fiftieth.” An examination of Lev. 23:15, 16 will reveal why the Feast is called Fiftieth. It was because the Feast began on the fiftieth day after the Passover sabbath, or “the morrow after the seventh sabbath.” This, of course, parallels exactly with the fulfillment of the type in the New Testament. When Christ arose from the dead, He continued with the disciples for the space of forty days, “speaking of the things pertaining to the kingdom of God.” (Acts 1:3). Then He departed into Heaven, and after ten days (at the time of Israel’s Feast of Pentecost), He sent forth the Holy Ghost upon the waiting disciples.
Mark 16:17 And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues;
Luke 3:16 John answered, saying unto them all, I indeed baptize you with water; but one mightier than I cometh, the latchet of whose shoes I am not worthy to unloose: he shall baptize you with the Holy Ghost and with fire:
Acts 2:1-4 And when the day of Pentecost was fully come, they were all with one accord in one place. And suddenly there came a sound from heaven as of a rushing mighty wind, and it filled all the house where they were sitting. And there appeared unto them cloven tongues like as of fire, and it sat upon each of them. And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance.
Acts 2:38 Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.
Acts 8:14-17 Now when the apostles which were at Jerusalem heard that Samaria had received the word of God, they sent unto them Peter and John: Who, when they were come down, prayed for them, that they might receive the Holy Ghost: (For as yet he was fallen upon none of them: only they were baptized in the name of the Lord Jesus.) Then laid they their hands on them, and they received the Holy Ghost.
Acts 10:44-47 While Peter yet spake these words, the Holy Ghost fell on all them which heard the word. And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost. For they heard them speak with tongues, and magnify God. Then answered Peter, Can any man forbid water, that these should not be baptized, which have received the Holy Ghost as well as we?
Acts 19:4-7 Then said Paul, John verily baptized with the baptism of repentance, saying unto the people, that they should believe on him which should come after him, that is, on Christ Jesus. When they heard this, they were baptized in the name of the Lord Jesus. And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied. And all the men were about twelve.
1 Corinthians 14:14-15 For if I pray in an unknown tongue, my spirit prayeth, but my understanding is unfruitful. What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also.
Jude 1:20-21 But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Ghost, Keep yourselves in the love of God, looking for the mercy of our Lord Jesus Christ unto eternal life.
See also; The baptism with the Holy Spirit