Day of the Lord (Pentecost Day)

Joel 2:27-32
"Thus you will know that I am in the midst of Israel And that I am the LORD your God, And there is no other, And My people will never be put to shame. "It will come about after this That I will pour out My Spirit on all mankind, And your sons and daughters will prophesy, Your old men will dream dreams, Your young men will see visions."Even on the male and female servants, I will pour out My Spirit in those days. 

"I will display wonders in the sky and on the earth, Blood, fire and columns of smoke. "The sun will be turned into darkness And the moon into blood Before the great and awesome day of the LORD comes. "And it will come about that whoever calls on the name of The LORD Will be delivered; For on Mount Zion and in Jerusalem There will be those who escape, As the LORD has said, Even among the survivors whom the LORD calls.

Isaiah 44:1-3
"But now listen, O Jacob, My servant, And Israel, whom I have chosen: Thus says the LORD who made you And formed you from the womb, who will help you, 'Do not fear, O Jacob My servant; And you Jeshurun whom I have chosen. 'For I will pour out water on the thirsty land And streams on the dry ground; I will pour out My Spirit on your offspring And My blessing on your descendants;

Zechariah 12:8-10

"In that day the LORD will defend the inhabitants of Jerusalem, and the one who is feeble among them in that day will be like David, and the house of David will be like God, like the angel of the LORD before them. "And in that day I will set about to destroy all the nations that come against Jerusalem. "I will pour out on the house of David and on the inhabitants of Jerusalem, the Spirit of grace and of supplication, so that they will look on Me whom they have pierced; and they will mourn for Him, as one mourns for an only son, and they will weep bitterly over Him like the bitter weeping over a firstborn.

Acts 10:44-48
While Peter was still speaking these words, the Holy Spirit fell upon all those who were listening to the message. All the circumcised believers who came with Peter were amazed, because the gift of the Holy Spirit had been poured out on the Gentiles also. For they were hearing them speaking with tongues and exalting God. Then Peter answered, 

"Surely no one can refuse the water for these to be baptized who have received the Holy Spirit just as we did, can he?" And he ordered them to be baptized in the name of Jesus Christ. Then they asked him to stay on for a few days.