Got it. But what does that have to do with whether we wish to vote for a liberal?
It has everything to do with it. The Gospel is the central truth of our existence.
God knows our motives for voting for a particular person. Our motives, our inner life, our intentions, are everything to God.
He wants to be the absolute center of all our motives, thinking, speaking — he wants to absolutely overtake every corner of our lives. We don’t have a God department and a non-God department in our lives. He wants everything. No closed doors. That means whether we are discussing the rent, the weather, the stockmarket, or politics, he wants his ideas, his person, and his plans to be at the center of all of it.
You see, it isn’t merely whether it’s a sin to vote, or a sin to vote for one party or another. God wants our underlying motive to be pure. When we have disdain or hatred, and that affects our vote, he is displeased. When we go to the polls and judge those who vote differently than those, we are displeasing him. We need to vote in humility, search our hearts, and ask God to show us our unpure motives and help make a decision.
This often results in getting much less worked up about politics. When one feels completely safe in God’s care, his relationship to politics changes. It doesn’t go away, but it is utterly transformed, and differences of opinion don’t upset us as much.
When we stop trusting in him, daily, with each breath, and begin to trust other things — man-made government, guns, our own wits, etc. — we are sinning against him.