Since you have purified your souls in obeying the truth through the Spirit in sincere love of the brethren, love one another fervently with a pure heart... 1 Peter 1:22
This is the verse that jumped out at me this week during our study. It's so easy to have compassion on the unsaved~at least for me~ since they are blinded to the Truth. But I personally have much higher expectations for other Christians...and forget to love them "fervently". The word in the original is a very active word, and so in the Peregrina paraphrase I would say..."Go out of your way to actively serve your fellow Christian in love".
Even the ones you don't "click" with! Ouch.