"This demonstration of divine justice had a powerful influence upon the people. The tidings that the apostle of Christ had been miraculously delivered from prison and death, while his persecutor had been stricken down by the curse of God, were borne to all lands and became the means of leading many to a belief in Christ. AA 152.2 The experience of Philip, directed by an angel from heaven to go to the place where he met one seeking for truth; of Cornelius, visited by an angel with a message from God; of Peter, in prison and condemned to death, led by an angel forth to safety—all show the closeness of the connection between heaven and earth. AA 152.3"
"And immediately the angel of the Lord smote him, because he gave not God the glory: and he was eaten of worms, and gave up the ghost."
EGW describes the events surrounding Herod's death as described in Acts 12:23.
"To the worker for God the record of these angel visits should bring strength and courage. Today, as verily as in the days of the apostles, heavenly messengers are passing through the length and breadth of the land, seeking to comfort the sorrowing, to protect the impenitent, to win the hearts of men to Christ. We cannot see them personally; nevertheless they are with us, guiding, directing, protecting. AA 152.4"
"Are they not all ministering spirits, sent forth to minister for them who shall be heirs of salvation?"
The EGW passage expands on the concept presented in Hebrews 1:14, applying it to the present day and emphasizing the role of angels in guiding and protecting believers. It directly echoes the idea of angels as ministering spirits.