For that [doubting] person should not think that he will receive anything from the Lord [through prayer],
But he should ask in faith, without doubting, because the person who doubts [that he will receive wisdom] is like an ocean wave that is driven and tossed by the wind.
because he is double-minded and undecided in all that he does [i.e., he cannot make up his mind and follow through about anything].
[When] you do ask, you do not receive it, because you ask from wrong motives, [just] so you can satisfy your own pleasures.