KJV: But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.
NASB: But solid food is for the mature, who because of practice have their senses trained to discern good and evil.
KJV: Not rendering evil for evil, or railing for railing: but contrariwise blessing; knowing that ye are thereunto called, that ye should inherit a blessing.
NASB: not returning evil for evil or insult for insult, but giving a blessing instead; for you were called for the very purpose that you might inherit a blessing.
KJV: I know thy works, and thy labour, and thy patience, and how thou canst not bear them which are evil: and thou hast tried them which say they are apostles, and are not, and hast found them liars:
NASB: I know your deeds and your toil and perseverance, and that you cannot tolerate evil men, and you put to the test those who call themselves apostles, and they are not, and you found them to be false;