Let them shout for joy, and be glad, that favour my righteous cause: yea, let them say continually, Let the LORD be magnified, which hath pleasure in the prosperity of his servant.
Let them shout for joy ... my righteous cause - or 'that wish my justification' (literally, 'righteousness'). 'Wish my justification' stands in contrast to "rejoice at mine hurt" (Psalms 35:26). Give thou them occasion for joyful thanksgivings by justifying me.
Let the Lord be magnified ... prosperity of his servant - literally, 'the peace (the fruit of the previous justification, Romans 5:1) of His servant.' The conferring of justification and peace on him will, according to his plea, call forth praises of God on the part of his fellow-believers, whose cause is identified with his.