Vim insert mode changes the font defined in ~/.Xresources

Question

Background

I am running Arch Linux with the i3 WM. I am trying to customize the font in Xterm by editing ~/.Xresources as every online resource online has told me to.

What i have done

I add the following lines to .Xresources

 *xterm*faceName: DejaVu Sans Mono
 *xterm*faceSize: 10

Then in xterm i run

xrdb ~/.Xresources

Then i start a new xterm and the font has successfully changed.

The Problem

I go to edit a document by opening it in vim. When i push 'i' to enter insert mode the whole font changes, it becomes larger and a completely different font face.

I have searched everywhere online but was unable to find anyone with a similar problem. I want to keep the same font face and size everywhere.