"On the following day Paul began to carry out the counsel of the elders. The four men who were under the Nazarite vow ( Numbers 6 ), the term of which had nearly expired, were taken by Paul into the temple, “to signify the accomplishment of the days of purification, until that an offering should be offered for every one of them.” Certain costly sacrifices for purification were yet to be offered. AA 406.1"
"Then Paul took the men, and the next day purifying himself with them entered into the temple, to signify the accomplishment of the days of purification, until that an offering should be offered for every one of them."
EGW directly quotes and explains the events described in Acts 21:26, making a clear and intentional reference.
"Those who advised Paul to take this step had not fully considered the great peril to which he would thus be exposed. At this season, Jerusalem was filled with worshipers from many lands. As, in fulfillment of the commission given him by God, Paul had borne the gospel to the Gentiles, he had visited many of the world's largest cities, and he was well known to thousands who from foreign parts had come to Jerusalem to attend the feast. Among these were men whose hearts were filled with bitter hatred for Paul, and for him to enter the temple on a public occasion was to risk his life. For several days he passed in and out among the worshipers, apparently unnoticed; but before the close of the specified period, as he was talking with a priest concerning the sacrifices to be offered, he was recognized by some of the Jews from Asia. AA 406.2"
"And when the seven days were almost ended, the Jews which were of Asia, when they saw him in the temple, stirred up all the people, and laid hands on him,"
The EGW passage directly refers to and expands upon the events described in Acts 21:27, where Jews from Asia recognize Paul in the temple and incite a riot. This is a clear and explicit allusion.
"With the fury of demons they rushed upon him, crying, “Men of Israel, help: This is the man, that teacheth all men everywhere against the people, and the law, and this place.” And as the people responded to the call for help, another accusation was added—“and further brought Greeks also into the temple, and hath polluted this holy place.” AA 406.3"
"Crying out, Men of Israel, help: This is the man, that teacheth all men every where against the people, and the law, and this place: and further brought Greeks also into the temple, and hath polluted this holy place."
EGW directly quotes the accusation against Paul from Acts 21:28, indicating a clear and intentional reference.