'Mayest' in the Bible

and I bring a piece of bread, and support ye your heart; afterwards pass on, for therefore have ye passed over unto your servant;' and they say, 'So mayest thou do as thou has spoken.'

and he turneth aside unto her by the way, and saith, 'Come, I pray thee, let me come in unto thee,' (for he hath not known that she is his daughter-in-law); and she saith, 'What dost thou give to me, that thou mayest come in unto me?'