ישעיהו מ:כ פירוש: רש״י ואבן עזרא

He who is accustomed to select הַמְסֻכָּן תְּרוּמָה. Or, if he comes to make it of wood, one who is accustomed to discern between a durable tree and other trees, chooses a tree that does not decay quickly.

המסכן תרומה Some explain מסכן to be identical with סוכן treasurer (22:15), and supply מסכן: the treasurer, namely, the treasurer of the oblation. According to others מסכן is an adjective; That which is stored up, namely the oblation, of which to make an image ;

He who is accustomed Heb. הַמְסֻכָּן. Comp. (Num. 22:30) “Have I been accustomed (הַהַסְכֵּן הִסְכַּנְתִּי)?”