"“If thou wilt keep My charge,” the Lord declares, “I will give thee places to walk among these that stand by”—even among the angels that surround His throne. ( Zechariah 3:7 .) By co-operating with heavenly beings in their work on earth, we are preparing for their companionship in heaven. “Ministering spirits, sent forth to minister for them who shall be heirs of salvation” ( Hebrews 1:14 ), angels in heaven will welcome those who on earth have lived “not to be ministered unto, but to minister” ( Matthew 20:28 ). In this blessed companionship we shall learn, to our eternal joy, all that is wrapped up in the question, “Who is my neighbour?” COL 389.1"
"Thus saith the Lord of hosts; If thou wilt walk in my ways, and if thou wilt keep my charge, then thou shalt also judge my house, and shalt also keep my courts, and I will give thee places to walk among these that stand by."
Ellen White directly references Zechariah 3:7 in this passage.
"Are they not all ministering spirits, sent forth to minister for them who shall be heirs of salvation?"
EGW directly quotes Hebrews 1:14 and uses it to support her point about cooperation with heavenly beings.
"Even as the Son of man came not to be ministered unto, but to minister, and to give his life a ransom for many."
EGW directly quotes Matthew 20:28 and uses it to support her point about ministering to others.