Sentence:  [B]y <WSD>cherubs</WSD> is signified guard and providence lest the Lord should be come at except by the good of love, thus to prevent any entering into heaven except they who are in good, also to prevent those who are in heaven, from being approached and hurt by those who are in hell. From these things it may be manifest what was signified by the propitiatory being over the ark, and by the <WSD>cherubs</WSD> being over the propitiatory and by the propitiatory and the <WSD>cherubs</WSD> being of pure gold; for gold signifies the good of love, and the ark heaven where the Lord is. [Interpreting Exodus 25:17–22 of the Bible.] 
Meaning of the word marked with <WSD> tags:  A winged creature attending on God, described by (Pseudo-Dionysius the Areopagite) ((short=yes)) as the second highest order of angels, ranked above thrones and below seraphim; similar to a lamassu in the pre-exilic texts of the Hebrew Bible, more humanoid in later texts.