"Christ had promised. Then it was that the Holy Spirit was poured out, and thousands were converted in a day. DA 827.1"
"Then they that gladly received his word were baptized: and the same day there were added unto them about three thousand souls."
Both passages refer to the outpouring of the Holy Spirit and the subsequent conversion of thousands of people in a single day. EGW is clearly referencing the events of Pentecost.
"So it may be now. Instead of man's speculations, let the word of God be preached. Let Christians put away their dissensions, and give themselves to God for the saving of the lost. Let them in faith ask for the blessing, and it will come. The outpouring of the Spirit in apostolic days was the “former rain,” and glorious was the result. But the “latter rain” will be more abundant. Joel 2:23 . DA 827.2"
"Be glad then, ye children of Zion, and rejoice in the Lord your God: for he hath given you the former rain moderately, and he will cause to come down for you the rain, the former rain, and the latter rain in the first month."
Ellen White directly references Joel 2:23 in this passage.
"All who consecrate soul, body, and spirit to God will be constantly receiving a new endowment of physical and mental power. The inexhaustible supplies of heaven are at their command. Christ gives them the breath of His own spirit, the life of His own life. The Holy Spirit puts forth its highest energies to work in heart and mind. The grace of God enlarges and multiplies their faculties, and every perfection of the divine nature comes to their assistance in the work of saving souls. Through co-operation with Christ they are complete in Him, and in their human weakness they are enabled to do the deeds of Omnipotence. DA 827.3"
"That he would grant you, according to the riches of his glory, to be strengthened with might by his Spirit in the inner man;"
Both passages discuss the strengthening power of the Spirit within believers. EGW's passage expands on this theme, aligning with the concept presented in Ephesians 3:16.
The Saviour longs to manifest His grace and stamp His character on the whole world. It is His purchased possession, and He desires to make men free, and pure, and holy. Though Satan works to hinder this purpose, yet through the blood shed for the world there are triumphs to be achieved that will bring glory to God and the Lamb. Christ will not be satisfied till the victory is complete, and “He shall see of the travail of His soul, and shall be satisfied.” Isaiah 53:11 . All the nations of the earth shall hear the gospel of His grace. Not all will receive His grace; but “a seed shall serve Him; it shall be accounted to the Lord for a generation.” Psalm 22:30 . “The kingdom and dominion, and the greatness of the kingdom under the whole heaven, shall be given to the people of the saints of the Most High,” and “the earth shall be full of the knowledge of the Lord, as the waters cover the sea.” “So shall they fear the name of the Lord from the west, and His glory from the rising of the sun.…
"He shall see of the travail of his soul, and shall be satisfied: by his knowledge shall my righteous servant justify many; for he shall bear their iniquities."
EGW directly quotes Isaiah 53:11 and uses it in the context of Christ's satisfaction with the results of his sacrifice.
"A seed shall serve him; it shall be accounted to the Lord for a generation."
Ellen White directly references Psalms 22:30 in this passage.
"And the kingdom and dominion, and the greatness of the kingdom under the whole heaven, shall be given to the people of the saints of the most High, whose kingdom is an everlasting kingdom, and all dominions shall serve and obey him."
Ellen White directly references Daniel 7:27 in this passage.
"They shall not hurt nor destroy in all my holy mountain: for the earth shall be full of the knowledge of the Lord, as the waters cover the sea."
Ellen White directly references Isaiah 11:9 in this passage.