The meaning of “θρησκεία”

“Which knew me from the beginning, if they would testify, that after the most straitest sect of our religion I lived a Pharisee.”

“Let no man beguile you of your reward in a voluntary humility and worshipping of angels, intruding into those things which he hath not seen, vainly puffed up by his fleshly mind,”

“If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man’s religion is vain.”

“Pure religion and undefiled before God and the Father is this, To visit the fatherless and widows in their affliction, and to keep himself unspotted from the world. ”