"Lord, who may abide in Your tabernacle?
Who may dwell in Your holy hill?" Psalm 15:1 (Read all of Psalm 15 as we continue to look into it.)

"He who does not backbite with his tongue, Nor does evil to his neighbor, Nor does he take up a reproach against his friend." Vs. 3

        'He who does not backbite with his tongue...'
Other translations from "THE WORD, The Bible from 26 Translations"
"He that slandereth not with his tongue..." Revived Version "He is not hasty with his tongue..." An American Translation "Who utters no treacherous words..." Knox

Romans 1:29-32 is a list of evils that those who exchanged the lie for the truth of God were given over to; notice in verse 30, backbiters are right there in the midst:
"Being filled with all unrighteousness, sexual immorality, wickedness, covetousness, maliciousness; full of envy, murder, strife, deceit, evil-mindedness; they are whisperers, backbiters, haters of God, violent, proud, boasters, inventors of evil things, disobedient to parents." 
vs. 29-30

Scripture tells us:
"Keep your tongue from evil
And your lips from speaking guile." Psalm 34:13

"Whoever guards his mouth and tongue
Keeps his soul from troubles." Proverbs 21:23

"In the multitude of words sin is not lacking, But he who restrains his lips is wise." Proverbs 10:19

"He who guards his mouth preserves his life, But he who opens wide his lips shall have destruction." Proverbs 13:3

Of the talebearer (gossip), Scripture says:
"A talebearer reveals secrets,
But he who is of a faithful spirit conceals matter." Proverbs 11:13

"He who goes about as a talebearer reveals secrets; Therefore do not associate with one who flatters with his lips."
Proverbs 20:19

"The words of a talebearer are like tasty trifles, And they go down into the inmost body." Proverbs 26:22

I Peter 3:10 tells us'
"He who would love life and see good days, let him refrain his tongue from  evil and his lips from speaking guile (deceit)."

Therefore, Believer, we must restrain the tongue -- it is a restraint that comes from the heart that is unto God and desires to do His will!

So with David in Psalm 141: 3 we pray,
"Set a guard, O Lord, over my mouth;
 Keep watch over the door of my lips."

        '...Does no evil to his neighbor...'
"For all the law is fulfilled in one word, even in this: 'You shall love your neighbor as yourself." Galatians 5:14

"Love does no harm to a neighbor; therefore love is the fulfillment of the law." Romans 13:10

"We then who are strong ought to bear with the weakness of the weak, and not to please ourselves, let each of us please his neighbor for his good, leading to edification." Romans 15:14-15

James 2:8 sums it up as he tells us,
"If you really fulfill the royal law according to the Scripture, 'You shall love yours neighbor as yourself,' you do well."

Let us be well doers and keep a guard on our lips and love our neighbors and do it all in love and obedience to our gracious and awesome Lord God Almighty. Amen