The "reptile" is a characteristic of a person "crawling", in close contact with the "earth", i.e. physiologically born, but in the process of his biological, "creaturely", "animal" life, has not grown to the acquisition of knowledge and fulfillment of the Commandments of God, has not achieved the embodiment of the righteous way of life of the true Man. 

"Reptile" is a symbol of a person with a purely materialistic way of thinking and carnal way of life, the basis of life which is "groveling" before their practical interests, material needs, the meaning and purpose of life is to please the flesh.

A "groveler" is a person who has degraded himself to a "creaturely" state by a spiritless, godless, immoral way of life, living for the sake of extraction, carnal gain