'Double' in the Bible

'It is not hard in thine eyes, in thy sending him away free from thee; for the double of the hire of an hireling he hath served thee six years, and Jehovah thy God hath blessed thee in all that thou dost.

But the first-born, son of the hated one, he doth acknowledge, to give to him a double portion of all that is found with him, for he is the beginning of his strength; to him is the right of the first-born.