'Rather' in the Bible

"Nay rather," He replied, "they are blessed who hear God's Message and carefully keep it."

It would be well for him if, with a millstone round his neck, he were lying at the bottom of the sea, rather than that he should cause even one of these little ones to fall.

and will not rather say to him, 'Get my dinner ready, make yourself tidy, and wait upon me till I have finished my dinner, and then you shall have yours'?