"Section 7—Calls to Service “I heard the voice of the Lord, saying, Whom shall I send, and who will go for us? Then said I, Here am I; send me.” Chapter 52—Young Men in the Ministry 6T 411 There must be no belittling of the gospel ministry. No enterprise should be so conducted as to cause the ministry of the word to be looked upon as an inferior matter. It is not so. Those who belittle the ministry are belittling Christ. The highest of all work is ministry in its various lines, and it should be kept before the youth that there is no work more blessed of God than that of the gospel minister. 6T 411"
"Also I heard the voice of the Lord, saying, Whom shall I send, and who will go for us? Then said I, Here am I; send me."
The EGW passage directly quotes Isaiah 6:8.
"Let not our young men be deterred from entering the ministry. There is danger that through glowing representations some will be drawn away from the path where God bids them walk. Some have been encouraged to take a course of study in medical lines who ought to be preparing themselves to enter the ministry. The Lord calls for more ministers to labor in His vineyard. The words were spoken: “Strengthen the outposts; have faithful sentinels in every part of the world.” God calls for you, young men. He calls for whole armies of young men who are largehearted and large-minded, and who have a deep love for Christ and the truth. 6T 411.2"
"Also I heard the voice of the Lord, saying, Whom shall I send, and who will go for us? Then said I, Here am I; send me."
While not a direct quote, the EGW passage echoes the call to service found in Isaiah 6:8, particularly the need for individuals to answer God's call to ministry. The context of needing ministers aligns with Isaiah's willingness to be sent.