I could have said that Christ is Lord of all of life and so all of life is worth talking about. I could have pointed out that it would not be odd to find a doctor spending a lot of their time talking about health, or a lawyer spending a lot of their time talking about legal matters, so why find it odd to hear an ecological ethicist talking frequently about ecological ethics? I could have said that the dichotomy between evangelism and loving our neighbours is ultimately a false one that misunderstands the gospel as a cerebral message requiring assent and assumes a zero-sum game in a context where things are far more complementary. I could have illustrated the previous point from my own experience, where after having spent many years employed as an evangelist and evangelism trainer for at least part of my job, I find myself today having more gospel conversations flowing naturally from my activities related to ecological ethics than I think I've ever had before. I could have pointed to the numerous places in Scripture where verbal witness and practical love are assumed to go hand in hand.
But instead, I went with this:
In the final judgement, God will destroy the destroyers of the earth. Those who knowingly and wilfully persist in harming their neighbour are living in ongoing rebellion against their Creator, whom they disrespect by participating in de-creation. Those who steal from future generations and cause little ones to stumble are denying the gospel of grace and the power of the resurrection. Those who seek to uphold the power of the powerful in their oppressive ways face a God who will humble them. Those who cause suffering through their own foolishness should expect no reward for it. Those who are found to have burned all their oil when the master returns will be cast out. Those who fail to adorn the gospel in lives of kindness place barriers in the path of future evangelists. Those who pretend they are not dust, co-creatures with all life that received God's original blessing deny their humanity. Those who dissolve the bonds of life re-crucify the one in whom all things hold together.
I believe in life before death.
And in the resurrection of the body.
Therefore, matter matters.