Blessed is he - See the notes at Psalms 1:1. Literally, “Oh the blessings of him that considers the poor.” The object is to describe the advantages of doing what is here said; or the excellence of the spirit which would be manifested in such a case, and the effect which this would have on his own happiness. These happy effects are described in the remainder of this verse, and in the two following verses.
That considereth - The word used here - from שׂכל śâkal - means properly to look at, to behold; then, to be prudent or circumspect; then, to attend to; and then in general to act prudently, wisely, intelligently, in any case. Here it means to attend to; to show an interest in; to care for. The idea is that of not neglecting; not passing by; not being indifferent to; not being hard-hearted and uncharitable toward.
The poor - Margin, “the weak,” or “the sick.” The word used in the Hebrew - דל dal - means properly something hanging or swinging, as of pendulous boughs or branches; and then, that which is weak, feeble, powerless. Thus it comes to denote those who are feeble and helpless either by poverty or by disease, and is used with a general reference to those who are in slow or humble condition, and who need the aid of others. The statement here is of a general nature - that he is blessed who shows proper sympathy for all of that class: for those who need the sympathy of others from any cause - poverty, sickness, a low condition, or trouble. The particular thing here referred to was a case of sickness; where one was borne down by disease, perhaps brought on by mental sorrow, and when he particularly needed the sympathy of his friends. See Psalms 41:5-8.
The Lord will deliver him in time of trouble - Margin, as in Hebrew: “in the day of evil.” This is the first happy effect or result of showing proper sympathy with others in their troubles. It is a statement of the general principle that the Lord will deal with us as we do with others. See this principle stated and illustrated in Psalms 18:24-26.