If so be] As you professe and perswade you self.
tasted] That is, have had any experimentall knowledge of the goodnesse and mercy of God in Christ; by our taste we make experience what is sweet, and what is fowre, or bitter. It may seem that S. Peter relates to Psalms 34:9. It is conceived by some, that hereby the Apostle followeth the former similitude, because children do by their tastes easily discern their nurses milk.
Lord] Christ Jesus.
gracious] Understand it of that grace which is manifested and offered in the Gospel. See Eph. 6. 9, 27. Titus 3:4. Hebrews 6:5.