What is the biblical basis for the claim that the Father is a bodiless spirit? I was reading another page on this site and someone used this quote "Father is invisible eternal spirit only" as a reason why God could not have a body as well as a spirit. I can't find it in any version of the bible. Meanwhile, LDS believe that God has a body.

What I want to know is, is there any evidence in any Christian scriptures that God can only be a spirit?

I want to know if there is any evidence that he can't have a body. That he could only be a spirit of some sort. If having a spirit is exclusive to having a physical form.
John 4:24 - God is spirit, and his worshipers must worship in the Spirit and in truth. The idea of a spirit by definition implies that there is not a corporeal body; one of the reasons why, when the Israelites created an idol to represent God, they were committing a form of blasphemy. When presented in corporeal form, our worship tends to go to that of an idol, rather than that of God.

In scripture, most of the language used to refer to "the right hand of God", etc. is metaphorical, which leads to the conclusion, that no, God does not have a physical body.