Vs. 118 — You reject all those who stray from Your statutes, For their deceit is falsehood.

William Henry Alexander:

“For their deceit is falsehood.” This seems a mere truism. The more correct rendering is, Their deceit, or cunning, is vain; i.e., does not answer their purpose, or attain its object.
(Alexander, W. H. (1867). The Book of Praises: Being the Book of Psalms, according to the Authorized Version, with Notes Original and Selected (p. 410). London: Jackson, Walford, and Hodder.)

Prayer:

O’ Lord, You reject all those who stray from Your statutes. Those who despise Your ways are deceiving themselves and others, and such deception is in vain. My own eyes and heart were once self-deceived and deluded by others. Yet in Your perfect time and way, You opened my heart to truth and the Gospel of Jesus Christ exploded in my heart and You delivered me from that darkness and vanity. Continue to open the eyes of Your chosen. Do not let us walk in the vain lies of this world. Thank You, Lord, Thank You.