Rashi: It is the good that He did with you until now, for many days.

Malbim: They are consolations that Hashem gave to you for your sadness on the land that Hashem cursed, and in life of this temporary world. Iyov denied reward in the world to come. Elifaz, says, you cannot deny that the Nefesh remains after death! Do you not know that the body is not the person himself - it is merely clothing of the Nefesh! When you remove the outer garment, you will live forever, and receive eternal reward for your good deeds! Afflictions are only temporary, lest one lose eternal life.

Rashi: La'at is a verb, and not a noun (He made pleasant); therefore, the vowels are Kamatz under the Lamed, and Patach under the Aleph.

Ibn Ezra: Something covert with you. Malbim - i.e. the spiritual Nefesh covered under the body.