May the nations be glad and sing for joy, for you rule the peoples with equity and guide the nations of the earth.
NIV
O let the nations be glad and sing for joy, for You will judge the peoples fairly and guide, lead, or drive the nations upon earth. Selah [pause, and calmly think of that]!
AMP
O let the nations be glad and sing for joy: for thou shalt judge the people righteously, and govern the nations upon earth. Selah.
KJV
Then these also would be sins to be judged, for I would have been unfaithful to God on high.
NIV
This also would have been [a heinous and principal] iniquity to demand the judges' action and punishment, for I would have denied and been false to the God Who is above. [Deut. 4:19; 17:2-7.]AMP
This also were an iniquity to be punished by the judge: for I should have denied the God that is above.
KJV
Let them sing before the LORD, for he comes to judge the earth. He will judge the world in righteousness and the peoples with equity.
NIV
Before the Lord, for He is coming to judge [and rule] the earth; with righteousness will He judge [and rule] the world, and the peoples with equity.
AMP
Before the LORD; for he cometh to judge the earth: with righteousness shall he judge the world, and the people with equity.
KJV