Verse Comparison: Psalms 89:27
American Standard Version
I also will make him `my' first-born, The highest of the kings of the earth.
Amplified® Bible
Also I will make him the firstborn, the highest of the kings of the earth.
Contemporary English Version
"I have chosen David as my first-born son, and he will be the ruler of all kings on earth. 
Darby English Version
And as to me, I will make him firstborn, the highest of the kings of the earth.
Good News Bible
I will make him my first-born son, the greatest of all kings. 
King James Version
Also I will make him my firstborn, higher than the kings of the earth.
New American Standard Bible
"I also shall make him {My} firstborn, The highest of the kings of the earth.
New International Version
I will also appoint him my firstborn, 
 the most exalted of the kings of the earth. 
New King James Version
Also I will make him My firstborn,
 The highest of the kings of the earth.
N.A.S.B. in E-Prime
"I also shall make him My firstborn, The highest of the kings of the earth. 
Revised Standard Version
And I will make him the first-born, the highest of the kings of the earth.
Young's Literal Translation
I also first-born do appoint him, Highest of the kings of the earth.