WHY FLATTERY IS A DEADLY SIN
10 And said, You master in every form of deception and recklessness, unscrupulousness, and wickedness, you son of the devil, you enemy of everything that is upright and good, will you never stop perverting and making crooked the straight paths of the Lord and plotting against His saving purposes? [Hos 14:9.]
1 Th 2:5-6
5 For as you well know, we never resorted either to words of flattery or to any cloak to conceal greedy motives or pretexts for gain, [as] God is our witness.
6 Nor did we seek to extract praise and honor and glory from men, either from you or from anyone else, though we might have asserted our authority [stood on our dignity and claimed honor] as apostles (special missionaries) of Christ (the Messiah).