Ever tried to eat your favorite dessert right after you put a strong mint flavored piece of gum in your mouth? You love that dessert so much but it doesn't taste quite as good because that mint flavor still roams in your mouth, distracting the real goodness.
The Lord wants us to grow in our spiritual lives, our new lives in Christ. We have tasted and know the Lord is good. Continue to crave that goodness. Desire Him. Desire being holy, being pure. You can't grow in purity and in your walk with Him if you are harvesting any bitter or hard feelings toward others. Lay it at His feet, get that taste out of your mouth.
1 Peter 2:1-3
" Therefore, rid yourselves of all malice and all deceit, hypocrisy, envy, and slander of every kind. Like newborn babies, crave pure spiritual milk, so that by it you may grow up in your salvation, now that you have tasted that the Lord is good."