Life.
You can't spread the Gospel if you are dead.
At first I wish you will not get Covid
Second I must say you, the you bet on the wrong horse. The most people died because of the virus and not because of the vaccine.
So if you realy want live you would choose the vaccine, from the rational point of view.
Third, if the Lord is not coming before, you anyway will die.
I know people they would not listen to the gospel because Christians are to much focused to believing conspiracy theories and spreading a baseless fear about the vaccine.
I understand your fear. But as some others statet, for us believers it makes no different to be vacccined or unvaccined.
We belong in both ways to the Lord.
But maby this Pandemie makes people open for the gospel. What do we tell them?