1 Peter 2:3

if so be ye have tasted that the Lord is gracious Better, if ye tasted, as referring more definitely to the experiences of the first period of their life as Christians. The word "tasted" as applied to those experiences follows naturally, as in Hebrews 6:4, on the imagery of the milk. The Greek word for "gracious" itself carries on the metaphor of the tasting, being applied in Luke 5:39 to express the mellowness of wine ripened by age. The words are a quotation from Psalms 34:8 as it stands in the LXX. version. We can scarcely doubt that the Apostle saw in the Master he had owned in Christ the "Lord" of whom the Psalmist spoke. It is possible that he may have been led to choose the quotation from the close resemblance in sound between the two Greek words for "Christ" (Christos) and "gracious" (Chrestos). The acceptance of the name of Christian as carrying with it this significance, and being, as it were, nomen et omen, was common in the second century (Tertullian Apol. 100:3), and it would have been quite in accordance with Jewish habits of thought for St Peter to have anticipated that application.