Neal A. Maxwell
"Consider…how many sincerely believe that if they simply ask for something in prayer, God will grant it, especially if they ask with at least a modicum of faith. King Benjamin counseled us, however, that while we are to pray in faith, it should be for that [which] is right (Mosiah 4:21). The resurrected Jesus so confirmed, saying: And whatsoever ye shall ask the Father in my name, which is right, believing that ye shall receive, behold it shall be given unto you (3 Nephi 18:20).
The phrase which is right is correlated [among various prophetic utterances]. Not surprisingly, Paul also understood the need for inspired prayers, saying, Likewise the Spirit also helpeth our infirmities: for we know not what we should pray for as we ought: but the Spirit itself maketh intercession for us with groanings which cannot be uttered (Rom 8:26). I hope I am not the only one in this audience who has sometimes wondered what to pray for. Therefore, how much in the complexities of life's situations, we need to have our very prayers inspired!" (John W. Welch, and Stephen D. Ricks, King Benjamin's Speech: Made Simple, p. 9)