Arise, go forth into the plain - Into a place remote from observation and noise; a place where the glory of God might have sufficient room to manifest itself, that the prophet might see all its movements distinctly.
Matthew Henry
Concise Bible Commentary
Let us own ourselves for ever indebted to the mediation of Christ, for the blessed intercourse between God and man; and a true believer will say, I am never less alone than when thus alone. When the Lord opened Ezekiel's mouth, he was to deliver his message boldly, to place life and death, the blessing and the curse, before the people, and leave them to their choice.
SDA Bible Commentary (limited)
Volume 1-7
22. Hand of the Lord. What Ezekiel had heard evidently filled him with an overwhelming and crushing sense of his responsibility.