The difference is the perspective, the rest I will leave to you.
<em>The orchard walls are high and hard to climb, And the place death, considering who thou art, If </em><em>any</em><em> of my kinsmen find thee here.</em>
<em>Any</em> is the indefinite pronoun because it means something like "it does not matter who of my kinsmen as long as the person is one of my kinsmen" although Present Day English demands agreement as third person singular (<em>if any of you agree</em><em>s</em>) in the passage the agreement is third person plural because from the point of view of meaning [<em>any of my kinsmen</em>] can be replaced as <em>they</em> and the verb <em>find</em> agrees with this plural idea.
Present Day British English has this kind of agreement called collective noun which grammatically can function like the pronoun <em>they</em>, for example as in <em>the committee </em><em>have</em><em> started the meeting</em>). The word <em>police</em> is another example of collective noun by taking third person plural agreement as in the sentence <em>The police </em><em>have </em><em>arrived</em>.
