Psalms 50:20

20 (49-20) Sitting thou didst speak against thy brother, and didst lay a scandal against thy mother’s son:

Psalms 50:20 Meaning and Commentary

Psalms 50:20

Thou sittest
Either in the chair of Moses, or on the seat of judgment, in the great sanhedrim of the nation; or, as Aben Ezra paraphrases it, "in the seat of the scornful";

[and] speakest against thy brother;
even to pass sentence upon him, to put him to death for professing faith in Christ, ( Matthew 10:21 ) ;

thou slanderest thine own mother's son;
the apostles and disciples of Christ, who were their brethren and kinsmen according to the flesh; and even our Lord Jesus Christ himself, who was bone of their bone, and flesh of their flesh.

Psalms 50:20 In-Context

18 (49-18) If thou didst see a thief thou didst run with him: and with adulterers thou hast been a partaker.

19 (49-19) Thy mouth hath abounded with evil, and thy tongue framed deceits.

20 (49-20) Sitting thou didst speak against thy brother, and didst lay a scandal against thy mother’s son:

21 (49-21) These things hast thou done, and I was silent. Thou thoughtest unjustly that I should be like to thee: but I will reprove thee, and set before thy face.

22 (49-22) Understand these things, you that forget God; lest he snatch you away, and there be none to deliver you.