to be or give clear proof of something

affirm, vouch for

to ask (a person) earnestly or urgently

beg

beseech

beg

to do clever tricks which appear magical

appeal to, implore

to call on (God, the power of the law etc) for help or protection; to request (something) earnestly

call upon

an arrangement

command, authorize

to speak, offer thanks, make a request etc (especially in one's thoughts) to God

plead; call upon for help, answer