“Be kind to one another, tenderhearted, forgiving one another, as God in Christ forgave you” (v32). Those who have “learned Christ” show His Spirit in their words and actions (v20). Paul put special emphasis on our speech, saying that we must put off the old self with its “corrupting talk” and “bitterness and wrath and anger and clamor and slander” (v29-31). Instead, we put on “the new self, created after the likeness of God in true righteousness and holiness” (v24). Following the world’s patterns of speech and conduct grieves the Holy Spirit (v30).
As we honor Jesus by cooperating with His Spirit, rejecting the old ways of selfishness and hard-heartedness, He transforms our minds, words, and behavior (v23).