Psalm 141:3

Protection From Sin And Sinners

²
Let my prayer be counted as incense before You;
The lifting up of my hands as the evening offering.
³ 
Set a guard, O Lord, over my mouth;
Keep watch over the door of my lips [to keep me from speaking thoughtlessly].
⁴
Do not incline my heart to [consent to or tolerate] any evil thing,
Or to practice deeds of wickedness
With men who plan and do evil;
And let me not eat of their delicacies (be tempted by their gain).

Keep Watch

Set A Guard

Set A Watch

Jehovah

Micah 7:5

Do not trust in a neighbor [because of the moral corruption in the land];
Do not have confidence in a friend.
Guard the doors of your mouth
From her who lies in your bosom.

Psalm 39:1

I said, “I will guard my ways
That I may not sin with my tongue;
I will muzzle my mouth
While the wicked are in my presence.”

Psalm 17:3-5

You have tried my heart;
You have visited me in the night;
You have tested me and You find nothing [evil in me];
I intend that my mouth will not transgress.

Psalm 34:13

Keep your tongue from evil
And your lips from speaking deceit.

Psalm 71:8

My mouth is filled with Your praise
And with Your glory all day long.

James 1:26

If anyone thinks himself to be religious [scrupulously observant of the rituals of his faith], and does not control his tongue but deludes his own heart, this person’s religion is worthless (futile, barren).

James 3:2

For we all stumble and sin in many ways. If anyone does not stumble in what he says [never saying the wrong thing], he is a perfect man [fully developed in character, without serious flaws], able to bridle his whole body and rein in his entire nature [taming his human faults and weaknesses].