Psalms 140-144 – If they want to set a trap for you, what is wrong with wanting a trap set for them?

Psa 141:8-10 For my eyes are toward Thee, O GOD, the Lord; In Thee I take refuge; do not leave me defenseless. 9Keep me from the jaws of the trap which they have set for me, And from the snares of those who do iniquity. 10Let the wicked fall into their own nets, While I pass by safely.