"The apostle's efforts were not confined to public speaking; there were many who could not have been reached in that way. He spent much time in house-to-house labor, thus availing himself of the familiar intercourse of the home circle. He visited the sick and the sorrowing, comforted the afflicted, and lifted up the oppressed. And in all that he said and did he magnified the name of Jesus. Thus he labored, “in weakness, and in fear, and in much trembling.” 1 Corinthians 2:3 . He trembled lest his teaching should reveal the impress of the human rather than the divine. AA 250.3"
"And I was with you in weakness, and in fear, and in much trembling."
Ellen White directly references 1 Corinthians 2:3 in this passage.
"“We speak wisdom among them that are perfect,” Paul afterward declared; “yet not the wisdom of this world, nor of the princes of this world, that come to nought: but we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory: which none of the princes of this world knew: for had they known it, they would not have crucified the Lord of glory. But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love Him. But God hath revealed them unto us by His Spirit: for the Spirit searcheth all things, yea, the deep things of God. For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God. AA 250.4"
"But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory:"
EGW directly quotes 1 Corinthians 2:7.