As many as I love, I rebuke and chasten: be zealous therefore, and repent. As many as I love - So it was the love he still had to them that induced him thus to reprehend and thus to counsel them.
Be zealous - Be in earnest, to get your souls saved, They had no zeal; this was their bane. He now stirs them up to diligence in the use of the means of grace and repentance for their past sins and remissness.