In nearly every town there were scores, in some, hundreds, converted as a result of his preaching. In many places Protestant churches of nearly all denominations were thrown open to him, and the invitations to labor usually came from the ministers of the several congregations. It was his invariable rule not to labor in any place to which he had not been invited, yet he soon found himself unable to comply with half the requests that poured in upon him. Many who did not accept his views as to the exact time of the second advent were convinced of the certainty and nearness of Christ's coming and their need of preparation. In some of the large cities his work produced a marked impression. Liquor dealers abandoned the traffic and turned their shops into meeting rooms; gambling dens were broken up; infidels, deists, Universalists, and even the most abandoned profligates were reformed, some of whom had not entered a house of worship for years. Prayer meetings were established by the various d…
"And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things!"
The EGW passage describes Miller being invited to preach, which aligns with the principle in Romans 10:15 that preachers should be sent or invited. Miller's practice of only preaching where invited reflects the idea that preachers should be called and sent.
"Then they that gladly received his word were baptized: and the same day there were added unto them about three thousand souls."
Both passages describe a large number of conversions as a result of preaching. The Acts passage describes the result of Peter's sermon, and the EGW passage describes the result of Miller's preaching. The numbers are different, but the overall theme of successful evangelism is present.