As we allege, however, that he has fallen into confusion in consequence of false notions which he has imbibed, come and let us point them out to the best of our ability, and show that although Celsus considers it to be a Jewish custom to bow down to the heaven and the angels in it, such a practice is not at all Jewish, but is in violation of Judaism, as it also is to do obeisance to sun, moon, and stars, as well as images. You will find at least in the book of Jeremiah the words of God censuring by the mouth of the prophet the Jewish people for doing obeisance to such objects, and for sacrificing to the queen of heaven, and to all the host of heaven. The writings of the Christians, moreover, show, in censuring the sins committed among the Jews, that when God abandoned that people on account of certain sins, these sins (of idol-worship) also were committed by them.
For it is related in the Acts of the Apostles regarding the Jews, that “God turned, and gave them up to worship the host of heaven; as it is written in the book of the prophets, O you house of Israel, have you offered to Me slain beasts and sacrifices by the space of forty years in the wilderness? Yea, you took up the tabernacle of Moloch, and the star of your god Remphan, figures which you made to worship them.” And in the writings of Paul, who was carefully trained in Jewish customs, and converted afterwards to Christianity by a miraculous appearance of Jesus, the following words may be read in the Epistle to the Colossians: “Let no man beguile you of your reward in a voluntary humility and worshipping of angels, intruding into those things which he has not seen, vainly puffed up by his fleshly mind; and not holding the Head, from which all the body by joint and bands having nourishment ministered, and knit together, increases with the increase of God.” But Celsus, having neither read these verses, nor having learned their contents from any other source, has represented, I know not how, the Jews as not transgressing their law in bowing down to the heavens, and to the angels therein.
Source: Against Celsus (New Advent)