Mark Maybe Both Mark and Adam seem normal, very common (although I only know one or two of them), and I wouldn't assume the parents are religious. They do seem traditional next to Hunter, Finley and even Bradley for me.
Micah no (Unlike the first two which I could locate in a bible with ease, those not belonging to a culture where people read the bible a lot (although I do got to church) I forget this is a biblical name. I am not sure what part of the bible he is from, but I think he's a prophet?)
Ezra no Also not sure where in the bible Ezra is from, (and I don't really care either). The only Ezras I have known are Jewish and I would think Jewish if I met an Ezra. I don't think of it as fundy Christian unlike the -iah names (Josiah, Jebidiah, etc.)
If you are Jewish, nothing wrong with that. If you are not Jewish, nothing wrong with using this name. My mom thought Rachel was a really Jewish name, but it became less so after she was born.
I like to think of the Bible as literature, so I consider them literary names. Therefore, they're all fine.
Agree with almost everyone that Mark & Adam are classic and common enough to not bring a Biblical association.
To me, Micah gives me a Biblical association. All the Micahs I've known have conservative Christian parents. But, somehow, it always makes me think "a cute nn of Michael" even though I know better...I have a hard time imagining Micah on an adult man. It does fit with the Caleb, Josiah, Isaiah, Asher crowd to me though: Biblical names that weren't so common that are used much more in the last 10 years by Christian parents.
Ezra is definitely Biblical to me, but has a different vibe than Micah or the rest. It skews more Jewish or vintage/literary, like Ezra Pound. It's very similar to Silas to me, and both are rising in popularity similarily. Personally, we're considering Ezra as a fresher Biblical name, because we are Christians, but I'm concerned it's spiking upwards too quickly and might go for something that's not trending up so obviously.
All together like that? Yes absolutely.
One at a time, though, not really.