Ps 23:6

“This is the generation of them that seek Him: – Who shall ascend into the hill of the Lord and in His Holy Place, because he is clean of hand and pure of heart? This is the generation of the seekers of the Lord, and they are Israel. And this happened in the days of Solomon, who built the House. And the Kethib דרשו (him that seeks Him) corresponds to דּוֹר (generation), which is a collective term, singular; and the Keri דֹּרְשָׁיו (them that seek Him) corresponds to the individuals, who are many. That seek Thy face, (even) Jacob: – The singer speaks as to God. These are they who seek Thy face in the Holy House, Jacob, and they are Israel; for all the seed of Jacob are called by the name Jacob, as (Jer. 30:10) “And thou fear not, O my servant Jacob” with other instances besides; And there is no need to supply seed of as the interpreters have done. And the word Selah I have interpreted in the third Psalm, and there is no need to interpret it in every place where it occurs.”

“Next he shows this manner in general: "This is the generation of those who seek the Lord"; as if to say: in general there are many such: and these are the whole generation of those who seek God, who are innocent, etc. Hence Scripture speaks of the good as of one generation: Mt. 24: "This generation shall not pass away," namely of the good, etc. And he describes it by two things: namely, by their pursuit, because it seeks nothing but God: hence he says "of those who seek God," even in this life: Is. 55: "Seek the Lord while he may be found." To what end? That they may arrive at his vision; hence it follows, "of those who seek the face of the God of Jacob": Gen. 32: "I have seen the Lord face to face, and my soul has been saved."”