A song. A psalm of David. My heart, O God, is steadfast; I will sing and make music with all my soul.
NIV
A song. A Psalm of David. O GOD, my heart is fixed (steadfast, in the confidence of faith); I will sing, yes, I will sing praises, even with my glory [all the faculties and powers of one created in Your image]!
AMP
O god, my heart is fixed; I will sing and give praise, even with my glory.
KJV
God has spoken from his sanctuary: "In triumph I will parcel out Shechem and measure off the Valley of Sukkoth."
NIV
God has promised in His holiness [regarding the establishment of David's dynasty]: I will rejoice, I will distribute [Canaan among My people], dividing Shechem and [the western region and allotting the eastern region which contains] the Valley of Succoth.
AMP
God hath spoken in his holiness; I will rejoice, I will divide Shechem, and mete out the valley of Succoth.
KJV