Charles Spurgeon Commentary Colossians 2:18

"Let no man rob you of your prize by a voluntary humility and worshipping of the angels, dwelling in the things which he hath seen, vainly puffed up by his fleshly mind," — Colossians 2:18 (ASV)

And worship of angels, intruding into those things which he hath not seen, vainly puffed up by his fleshly mind,

Agnostics by their name confess that they do not know, but do not let them take away from you what you do know, and set you to investigate matters which are beyond you with a judgment which they would lead you to think is nearly infallible, whereas your judgment is very fallible indeed. Do not be puffed up by your fleshly mind.

Let no man beguile you of your reward in a voluntary humility.

We know those who say, "We do not know anything, we are only seekers, trying to find out the truth." They talk very humbly considering how desperately proud they really are, but that humility which makes people doubt is mock humility and is not of God. Let no man beguile you of your reward. When you have learned the truth from the Scriptures, be dogmatic about it; do not be afraid of the presumption of which they will accuse you, or the bigotry which they will impute to you.