Isaiah 60:1
1“Arise, shine; for your light has come, and the LORD’s glory has risen on you!
Wesley: arise out of a low and comfortless condition; shine with a full and heavenly light. Thy light is the light of the gospel; the glory is the glorious God.
Zion can still get up. The light has come—sincerely held out—so shine is a genuine command under grace.
Calvin: he raises a prostrate Church by command, as if putting her in possession of the happier condition he promised. Words are not scattered in the air. Arise stands against the former lie down. Brightness denotes salvation; it will arise from God’s smiling countenance.
He speaks with effect. Everything goes well when the Lord shines; when he turns away, nothing more wretched can befall us. The glory is his, risen upon the Church he lifts.