NOTES for Psa 33:9
First of all, this verse tells us about God's goodness, and this is perhaps the main thing. If God is good, then in the world He created there is a possibility for happiness, and this happiness, more than happiness, blessedness, is attained by trusting Him, by hoping in Him. And here it is also said that God's goodness is not an abstraction, but something known in real experience. The verbs describing this experience are remarkable: taste, because the experience of communion with God is always inward and for it one must let the Lord inside oneself (pay attention to the parallel passages, recall the Mystical Supper); see, because it is an experience of contemplation, and God is light and in Him there is no darkness at all.