Genesis 1 establishes that God asserted His authority over chaos to bring order to it so that life could flourish. God then created humans and gave His authority to us so that we can assert that authority over this world to bring order out of chaos so that life can flourish.
I believe that the recently developed vaccines are one way that humans are exerting their authority over the COVID-19 virus to bring order out of the chaos it has created so that our lives can flourish again.
Both Jesus and Paul tell us, in the New Testament to obey the governments we find ourselves under because they have been setup by God. The only times we are not to obey the government is if the government asks to not love God or to not love other people.
So when presented with a government mandate to get a vaccine I need to ask two questions: Does getting the vaccine cause me to not love God? Does the getting the vaccine cause me to not love other people?
I have heard Christians argue that getting the vaccine causes them to not love God because it requires them to put harmful substances into their bodies, which are to be treated as a holy temple.
Jesus specifically teaches that nothing going into a person can defile them. The only exceptions would be if ingesting something causes it to be difficult to love other people. For instance, eating too much or drinking too much are sins because the consequences of obesity and drunkenness make it difficult to properly love other people.
Remember, Jesus asks us to lay our lives down, so worry about how the vaccine will affect us personally should have no bearing on our decision, except as it could affect our ability to properly love others.
I believe that getting the vaccine, unless I were to have a specific medical condition that would make it impossible, actually helps me love others, and therefore, love God. The vaccine makes it less likely that I will spread COVID-19 to others, which is a way of loving others. Getting the vaccine also means that if I should get COVID-19 I will most likely get a milder case, also making it easier to continue to properly love others.
I realize that there are some who believe that the vaccine has killed more people than COVID-19 has. As someone who has done biological research in the past and also worked for a medical company that did a lot of research, I find that hard to believe.
So I think that the vaccine mandates are the government doing what God designed government to do: exercise His authority to bring order out of chaos so that life can flourish.