When Paul talks about the 'love of Christ' in this verse, what exactly is he referring to? Is it our love for Him, or His love for us?
Paul isn't asking what can separate us from the love we have for Christ. While our love is precious, it's often weak and failing. Instead, he's declaring that nothing can separate us from the steadfast, unconditional love that Christ has for us.
Think about it: the context of Romans 8 is God's immense plan of salvation – predestination, calling, justification, and glorification. This entire chain of grace is initiated and secured by God and Christ, not by our fluctuating feelings.
The 'love of Christ' here is the deep, active, unwavering affection and commitment Christ has demonstrated towards believers, culminating in His sacrifice for us. This love is the source of our security, not our feelings about it.