From The Openness of God:

Abraham Joshua Heschel, a Jewish theologian, notes the striking contrast between God’s anger and love as the two are described in the Hebrew Scriptures.”‘ He points out a profound difference in their duration. God’s anger is temporary, his love is permanent: “His anger is but for a moment; his favor is for a lifetime” (Ps 30:5 NRSV); “In overflowing wrath for a moment I hid my face from you, but with everlasting love I will have compassion on you”