Psalm 141:1
141:1 A Psalm of David. LORD, I {a} cry unto thee: make
      haste unto me; give ear unto my voice, when I cry unto
      thee.

      (a) He shows that there is no other refuge in our
          necessity but only to flee to God for comfort of soul.

Psalm 141:2
141:2 Let my prayer be set forth before thee [as] incense; [and]
      the {b} lifting up of my hands [as] the evening sacrifice.

      (b) He means his earnest zeal and gesture, which he used
          in prayer: alluding to the sacrifices which were by
          God's commandment offered in the old law.

Psalm 141:3
141:3 Set a watch, O LORD, before my mouth; {c} keep the door of
      my lips.

      (c) He desires God to keep his thoughts and ways either
          from thinking or executing vengeance.

Psalm 141:4
141:4 Incline not my heart to [any] evil thing, to practise
      wicked works with men that work iniquity: and let me not
      eat of their {d} dainties.

      (d) Let not their prosperity lure me to be wicked as they
          are.

Psalm 141:5
141:5 Let the righteous smite me; [it shall be] a kindness: and
      let {e} him reprove me; [it shall be] an excellent oil,
      [which] shall not break my head: for yet my prayer also
      [shall be] in their calamities.

      (e) He could abide all corrections that came from a loving
          heart.

Psalm 141:6
141:6 When their judges are overthrown in stony places, they
      shall {g} hear my words; for they are sweet.

      (g) The people who follow their wicked rulers in
          persecuting the prophet will repent and turn to God,
          when they see their wicked rulers punished.

Psalm 141:7
141:7 Our bones are scattered at the {h} grave's mouth, as when
      one cutteth and cleaveth [wood] upon the earth.

      (h) Here it appears that David was miraculously delivered
          out of many deaths as in 2 Corinthians 1:9,10.

Psalm 141:10
141:10 Let the wicked fall into {i} their own nets, {k} whilst
       that I withal escape.

       (i) Into God's nets, by which he catches the wicked in
           their own malice.
       (k) So that none of them escape.