'Attain' in the Bible

I will pay attention to living a life of integrity when will I attain it? I will live with integrity of heart in my house.

Such knowledge is too wonderful for me; it is high, I cannot attain unto it.

Do not grant, O Yahweh, [the] desires of [the] wicked. Do not allow [them] to attain their plan, lest they be exalted. Selah