I have five hundred crowns, the thrify hire I saved under your father, and laid by to be provision for me when my old limbs should become unfit for service; take that, and he that doth the ravens feed (should省略）be comfort to my age.

我有五百冠冕，这是我在你父亲手下工作存下节省下来的工钱，当我的脚不适合服事的时候，我就把这当供我使用；拿着吧，那牧养乌鸦的人，就可以帮我安度晚年了。

should be comfort to my age中的should be表示一种理论上推测

comfort 为名词表示“安慰，慰藉；使人舒服的事物; 给予援助或安慰的人或事;”

When， contrary to the wicked hopes he had formed， his brother proved victorious， his envy and malice knew no bounds， and he swore he would burn the chamber where Orlando slept. He was overheard making this vow by one that had been an old and faithful servant to their father， and that loved Orlando because her resembled Sir Rowland. This old man went out to meet him when he returned from the duke‘s palace， and when he saw Orlando， the peril his dear young master was in made him break out into these passionate exclamations： “O my gentle master， my sweet master， O you memory of old Sir Rowland！ why are you virtuous？ why are you gentle， strong， and valiant？ and why would you be so fond to overcome the famous wrestler？ Your praise is come too swiftly home before you.” Orlando， wondering what all this meant， asked him what was the matter. And then the old man told him how his wicked brother， envying the love all people bore him， and now hearing the fame he had gained by his victory in the duke’s palace， intended to destroy him， by setting fire to his chamber that night； and in conclusion， advised him to escape the danger he was in by instant flight； and knowing Orlando had no money， Adam （for that was the good old man‘s name） had brought out with him his own little hoard， and he said， “I have five hundred crowns， the thrifty hire I saved under your father， and laid by to be provision for me when my old limbs should become unfit for service； take that， and he that doth the ravens feed be comfort to my age！ Here is the gold； all this I give to you： let me be your servant； though I look old I will do the service of a younger man in all your business and necessities.” “O good old man！” said Orlando， “how well appears in you the constant service of the old world！ You are not for the fashion of these times. We will go along together， and before your youthful wages are spent， I shall light upon some means for both our maintenance.”