Today, Sunday May 31, 2020, is Pentecost Sunday. It is the day that the Holy Ghost first began to be poured out and the New Testament church officially began.

After His death, burial, resurrection, and forty days in which He showed Himself alive by many infallible proofs, Jesus spoke to His disciples. (Acts 1:3, 1 Corinthians 15:3-7)

"And, being assembled together with them, commanded them that they should not depart from Jerusalem, but wait for the promise of the Father, which, saith he, ye have heard of me. For John truly baptized with water; but ye shall be baptized with the Holy Ghost not many days hence." - Acts 1:4-5 KJV

"But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth. And when he had spoken these things, while they beheld, he was taken up; and a cloud received him out of their sight." - Acts 1:8-9 KJV

"Then returned they unto Jerusalem from the mount called Olivet, which is from Jerusalem a sabbath day's journey. And when they were come in, they went up into an upper room...These all continued with one accord in prayer and supplication… (the number of names together were about an hundred and twenty,)" - Acts 1:12-15 KJV

"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 2:1-4 KJV

"And there were dwelling at Jerusalem Jews, devout men, out of every nation under heaven. Now when this was noised abroad, the multitude came together, and were confounded, because that every man heard them speak in his own language. And they were all amazed and marvelled, saying one to another, Behold, are not all these which speak Galilaeans? And how hear we every man in our own tongue, wherein we were born? ... We do hear them speak in our tongues the wonderful works of God." - Acts 2:5-8, 11 KJV

"And they were all amazed, and were in doubt, saying one to another, What meaneth this?  Others mocking said, These men are full of new wine." - Acts 2:12-13 KJV

"But Peter, standing up with the eleven, lifted up his voice, and said unto them, Ye men of Judaea, and all ye that dwell at Jerusalem, be this known unto you, and hearken to my words: For these are not drunken, as ye suppose, seeing it is but the third hour of the day.

But this is that which was spoken by the prophet Joel; And it shall come to pass in the last days, saith God, I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams: and on my servants and on my handmaidens I will pour out in those days of my Spirit; and they shall prophesy:" - Acts 2:14-18 KJV

Peter, standing with the eleven apostles, preached to them Jesus.

"Therefore let all the house of Israel know assuredly, that God hath made that same Jesus, whom ye have crucified, both Lord and Christ." - Acts 2:36 KJV

"Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do?

“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. For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call.

“And with many other words did he testify and exhort, saying, Save yourselves from this untoward generation.

Then they that gladly received his word were baptized: and the same day there were added unto them about three thousand souls.

And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers. ... Praising God, and having favour with all the people.

“And the Lord added to the church daily such as should be saved." - Acts 2:37-42, 47 KJV