The correct answer is: Henry thinks they have exhausted all their options and it’s time to fight.
Indeed, he is both very explicit and implicit about it. His explicit remarks in the text: “I ask, gentlemen, sir, what means this martial array, if its purpose be not to force us to submission? Can gentlemen assign any other possible motive for it? Has Great Britain any enemy, in this quarter of the world, to call for all this accumulation of navies and armies? No, sir, she has none. They are meant for us; they can be meant for no other. They are sent over to bind and rivet upon us those chains which the British ministry have been so long forging.”
The implicit parts allude to two sources: the Bible and the play Hamlet by William Shakespeare.
“Suffer not yourselves to be betrayed with a kiss” is a direct allusion to Judas Iscariot’s betrayal of Jesus right before the crucifixion. As mentioned in Matthew 26:47-56: “47 While He was still speaking, Judas, one of the Twelve, suddenly arrived. A large mob, with swords and clubs, was with him from the chief priests and elders of the people. 48 His betrayer had given them a sign: “The One I kiss, He’s the One; arrest Him!” 49 So he went right up to Jesus and said, “Greetings, Rabbi!” and kissed Him.
“Why this same strict and most observant watch
So nightly toils the subject of the land,
And why such daily cast of brazen cannon
And foreign mart for implements of war,
Why such impress of shipwrights, whose sore task
75Does not divide the Sunday from the week.
What might be toward, that this sweaty haste” Hamlet, Act I, Scene I