Brothers, I do not consider myself yet to have taken hold of it. But one thing I do: Forgetting what is behind and straining toward what is ahead,
KJV
Brethren, I count not myself to have apprehended: but [this] one thing [I do], forgetting those things which are behind, and reaching forth unto those things which are before,
ASV
Brethren, I count not myself yet to have laid hold: but one thing I do, forgetting the things which are behind, and stretching forward to the things which are before.