Thematic Bible: A rainbow and the throne

Immediately, I was in [i.e., under the influence of] the Holy Spirit [See 1:10], and there before me was situated a throne in heaven, with Someone sitting on it [Note: From the following description, this appears to have been God]. And He who was seated [on it] appeared like jasper [i.e., possibly diamond. See 21:11] and carnelian [i.e., possibly a brilliant red stone], and there was a rainbow, resembling an emerald, surrounding the throne.