The Dao is merely a practical guide. Notice that it has very little exposition of heaven or gods, primarily because Lao Tse (traditionally held to be the author) knew little about those things.
He showed how the world worked, and advocated a willingness to go with nature make one’s life satifying and moral.
There are lessons to be taken from it, and I still read it now and then, but a Christian is called to a higher purpose than nature.