9 Bible Verses about Bad Attitude

[Psa. 4:4 says], "Be angry [i.e., at wrongdoing. See Mark 3:5], but do not sin" [i.e., by harboring bitterness or retaliation]. Do not allow the sun to go down while you are still provoked.

You people [already] know this [or, "you should know this"], my dearly loved brothers. However, every person should be quick to listen, slow to talk and slow in becoming angry.

idol worship, occultic practices, hatefulness, dissension, jealousy, angry outbursts, factious spirits, divisiveness, party spirits,

So, put away from you all [kinds of] bitterness and anger and wrath and brawling and slander, along with all [kinds of] malice [i.e., bad attitudes],

Do not allow unwholesome [Note: The Greek word for "unwholesome" is "rotten, diseased"] language to come from your mouth, but only what is helpful for building up those who need it, so that you can impart favor [i.e., benefit] to those who listen [to you].

Keep your lives free from the love of money [and be] content with what you have, because God [Himself] has said [Deut. 31:6], "By no means will I [ever] desert you or give up on you."

Then after some days Paul suggested to Barnabas, "Let us go back and visit the brothers in all the towns where we proclaimed the message of the Lord, to see how they are doing." Barnabas [agreed, and] wanted to take John Mark [his cousin, See Col. 4:10] with them. But Paul was not at all in favor of taking someone who had left them and refused to continue on in the work [of preaching the Gospel] when they were in Pamphylia. [See 13:13].read more.
A heated discussion developed [over this matter] so that Paul and Barnabas went their separate ways [over it], with Barnabas sailing for Cyprus and taking [John] Mark with him.

But I say to you that every person who is angry toward his brother will be subject to judgment; and whoever calls his brother 'stupid idiot' is subject to [being sentenced by] the [Jewish] Council, and whoever says, 'go to hell' is subject to going to the fire of hell [himself].

And you fathers [Note: This word probably includes both parents], do not stir up your children to become angry, but bring them up in the training and instruction of the Lord.