'Rigour' in the Bible

thou rulest not over him with rigour, and thou hast been afraid of thy God.

and ye have taken them for inheritance to your sons after you, to occupy for a possession; to the age ye lay service upon them, but upon your brethren, the sons of Israel, one with another, thou dost not rule over him with rigour.

as an hireling, year by year, he is with him, and he doth not rule him with rigour before thine eyes.