When we received the light upon the fourth commandment, there were about twenty-five Adventists in Maine who observed the Sabbath; but these were so diverse in sentiment upon other points of doctrine, and so scattered in location, that their influence was very small. There was about the same number, in similar condition, in other parts of New England. It seemed to be our duty to visit these frequently at their homes, and strengthen them in the Lord and in His truth, and as they were so much scattered, it was necessary for us to be on the road much of the time. For want of means we took the cheapest private conveyance, second-class cars, and lower-deck passage on steamers. In my feeble condition I found traveling by private conveyance most comfortable. When on second-class cars, we were usually enveloped in tobacco smoke, from the effects of which I often fainted. When on steamers, on lower deck, we suffered the same from the smoke of tobacco, besides the swearing and vulgar conversatio…
"Remember the sabbath day, to keep it holy."
The EGW passage directly references receiving light on the fourth commandment, which is the Sabbath commandment in Exodus 20:8. This is a clear and direct connection.
"And he went through Syria and Cilicia, confirming the churches."
Both passages describe traveling to strengthen believers. Acts 15:41 describes Paul confirming the churches, while the EGW passage describes traveling to strengthen Sabbath-keepers. The parallel lies in the act of traveling to support and encourage believers.