"In the afternoon it was difficult to make my way to the desk through the standing crowd. Upon reaching it, a sea of heads was before me. The mammoth tent was full, and thousands stood outside, making a living wall several feet deep. My lungs and throat pained me very much; yet I believed that God would help me upon this important occasion. The Lord gave me great freedom in addressing that immense crowd upon the subject of Christian temperance. While speaking, my weariness and pain were forgotten, as I realized that I was speaking to a people that did not regard my words as idle tales. The discourse occupied over an hour, and the very best attention was given throughout. LS 225.4"
"And he said unto me, My grace is sufficient for thee: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me."
The EGW passage describes her physical weakness and reliance on God's strength to speak to a large crowd, mirroring the sentiment in 2 Corinthians 12:9 about God's strength being made perfect in weakness.
"Now when they saw the boldness of Peter and John, and perceived that they were unlearned and ignorant men, they marvelled; and they took knowledge of them, that they had been with Jesus."
Both passages describe individuals speaking with boldness and effectiveness despite perceived limitations. In Acts, Peter and John's boldness is noted despite their lack of formal education. In EGW, she speaks despite physical pain and weariness, and the audience gives rapt attention. The common thread is empowered speaking beyond natural limitations.