Do Christians have faith in oxygen/air?

[possibletarian]

Okay, so now I'd distanced myself from the church for a few months now.

Three months ago, my partner asked me if I had faith in the air we breath.

Of course my answer was no, because it is obviously and irrefutably there.

You could guess what that person asked next! 

Next question was: "So why do you have faith in God?"

Thinking about that question for several weeks now, and I'm having a strange feeling. 

Am I overthinking because I can't think of a strong answer? What am I missing?

From my own experience I found faith in god a very high maintenance religion.

Like you I had many doubts, the thing is I really wanted to believe so I made intellectual compromise after compromise, indeed I was very good at it. 

I think people go a few ways they either become to accept that their religion does not make sense, but they go ahead and find ways to make it work, to believe despite deep down thinking perhaps there is no god, usually wrapped up in a feeling of unworthiness,  if only I pray more, Give more, ask harder for the holy spirit to lead the way.. and so it goes on always elusive, just round the corner in the next tithe or prayer.

To answer why we have doubts they not only invented god, they invented a opposer of god, satan, who they say deceives you and drags you down, and you need delivering, and with some pray and attention, affirmation you feel better... till the next time. and on and on it goes.

The answer though is simpler more eloquent , that there is no god at the other end of all this devotion. and there is no satan dragging you down.
You deductions are correct there is no god at all.

The other way people go is to become super spiritual, immerse themselves in a kind of belief absolute, they read and quote the bible all the time (because that's what it tells you to do) they give no thought for if it's correct or can be proven or not they just spew scripture like vomit, they even feel holy and godly doing so, they even get a thrill from it.  Their feelings tell them it is god speaking through them, But it isn't not really, unless of course there is a god of gobshyte.

Don't let such people steal your integrity, come to a peace in your own heart, after leaving Christianity my testimony is I have never felt more free.