C. F. Keil and Franz Delitzsch on Leviticus 26:9

Lev 26:9

Moreover the Lord would bestow His covenant blessing upon them without intermission. אל פּנה signifies a sympathizing and gracious regard (Psa 25:16; Psa 69:17). The multiplication and fruitfulness of the nation were a constant fulfilment of the covenant promise (Gen 17:4-6) and an establishment of the covenant (Gen 17:7); not merely the preservation of it, but the continual realization of the covenant grace, by which the covenant itself was carried on further and further towards its completion. This was the real purpose of the blessing, to which all earthly good, as the pledge of the constant abode of God in the midst of His people, simply served as the foundation.