"At first I moved out timidly in the work of public speaking. If I had confidence, it was given me by the Holy Spirit. If I spoke with freedom and power, it was given me of God. Our meetings were usually conducted in such a manner that both of us took part. My husband would give a doctrinal discourse, then I would follow with an exhortation of considerable length, melting my way into the feelings of the congregation. Thus my husband sowed and I watered the seed of truth, and God did give the increase. 1T 75.3"
"I have planted, Apollos watered; but God gave the increase."
EGW directly uses the imagery of planting, watering, and God giving the increase, mirroring the language and concept of 1 Corinthians 3:6. This is more than a thematic parallel; it's a direct application of the verse to her ministry.
"And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance."
Both passages describe being empowered by the Holy Spirit to speak. While Acts 2:4 focuses on speaking in tongues, the EGW passage describes speaking with freedom and power. The connection is thematic, relating to the Spirit's influence on speech.
In the autumn of 1846 we began to observe the Bible Sabbath, and to teach and defend it. My attention was first called to the Sabbath while I was on a visit to New Bedford, Massachusetts, earlier in the same year. I there became acquainted with Elder Joseph Bates, who had early embraced the advent faith, and was an active laborer in the cause. Elder B. was keeping the Sabbath, and urged its importance. I did not feel its importance, and thought that Elder B. erred in dwelling upon the fourth commandment more than upon the other nine. But the Lord gave me a view of the heavenly sanctuary. The temple of God was opened in heaven, and I was shown the ark of God covered with the mercy seat. Two angels stood, one at each end of the ark, with their wings spread over the mercy seat, and their faces turned toward it. My accompanying angel informed me that these represented all the heavenly host looking with reverential awe toward the holy law which had been written by the finger of God. Jesus r…
"Remember the sabbath day, to keep it holy. Six days shalt thou labour, and do all thy work: But the seventh day is the sabbath of the Lord thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates: For in six days the Lord made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the Lord blessed the sabbath day, and hallowed it."
The EGW passage describes her coming to understand the importance of the Sabbath, which is the central theme of Exodus 20:8-11. While she doesn't directly quote the verse, her experience is directly related to the commandment to remember the Sabbath.