Shall speak, Heb. shall meditate, i.e. shall speak not rashly and hastily, but what I have well considered and digested. Is an abomination to my lips: I hate to speak it; therefore you may be assured that I shall not deceive you.
Related Commentaries of Proverbs 8:7
Proverbs 8:7
7 For my mouth shall speak truth; and wickednessa is an abomination to my lips.