King James Version
Not as though I had already attained, either were already perfect: but I follow after, if that I may apprehend that for which also I am apprehended of Christ Jesus.English Standard Version
Not that I have already obtained this or am already perfect, but I press on to make it my own, because Christ Jesus has made me his own.New International Version
Not that I have already obtained all this, or have already been made perfect, but I press on to take hold of that for which Christ Jesus took hold of me.