Whoso is wise, and will observe these things, even they shall understand the lovingkindness of the LORD. Whoso is wise - That is, He that is wise, he that fears God, and regards the operation of his hand will observe - lay up and keep, these things. He will hide them in his heart, that he sin not against Jehovah. He will encourage himself in the Lord, because he finds that he is a never-failing spring of goodness to the righteous.
They shall understand the lovinq-kindness of the Lord - חסדי יהוה chasdey Yehovah, the exuberant goodness of Jehovah. This is his peculiar and most prominent characteristic among men; for "judgment is his strange work." What a wonderful discourse on Divine Providence, and God's management of the world, does this inimitable Psalm contain! The ignorant cannot read it without profit; and by the study of it, the wise man will become yet wiser.
Commentary on the Bible, by Adam Clarke [1831].