Nevertheless I have somewhat against thee, because thou hast left thy first love.
Somewhat ... because - rather, 'I have against thee (this) that,' etc. Not a mere "somewhat:" it is everything. How characteristic of our gracious Lord, that He puts foremost all He can find to approve, and only afterward notes the shortcomings!
Left thy first love - to Christ. Compare 1 Timothy 5:12. See their first love, Ephesians 1:15. This letter was written under Domitian, thirty years since Paul had written to them. Their warmth had given place to lifeless orthodoxy. Compare Paul's view of faith so-called without love, 1 Corinthians 13:2.