UNACCEPTABLE BOASTING***
Here is a list of verses about unacceptable boasting:

http://www.biblestudytools.com/passage/?q=proverbs+27:1;jeremiah+9:23-24;jeremiah+13:20;hosea+12:8;amos+4:5;acts+8:9;romans+11:13-23;1+corinthians+3;1+corinthians+5:1-11;galatians+6:13-14;ephesians+2:8-10;2+timothy+3:2;james+3:5;james+3:14;james+4:13-16;2+peter+2;1+john+2:15-16;jude+1:16;revelation+18:2-12