Moses changed the message that God had given him so that it had a better possibility for success - at least in his mind.
^Hold a feast^? That was a Moses tweak to the WordOfGod. It was deception. Since Pharoah was not a fool, he read into that 2 things: -> Moses was a liar -> Moses was afraid of him.
Integrity and directness are qualities of our Lord. Compromise and duplicity are ^qualities^ of Satan.