1Sa 17:4
17:4 And there {a} went out a champion out of the camp of the
     Philistines, named Goliath, of Gath, whose height [was] six
     cubits and a span.

     (a) Between the two camps.

1Sa 17:5
17:5 And [he had] an helmet of brass upon his head, and he [was]
     armed with a coat of mail; and the weight of the coat [was]
     five thousand {b} shekels of brass.

     (b) That is, 156 pounds 4 ounces, after half and ounce to
         the shekel: and 600 shekels weight amounts to 18 3/4
         pounds.

1Sa 17:15
17:15 But David {c} went and returned from Saul to feed his
      father's sheep at Bethlehem.

      (c) To serve Saul, 1Sa 16:19.

1Sa 17:17
17:17 And Jesse said unto David his son, {d} Take now for thy
      brethren an ephah of this parched [corn], and these ten
      loaves, and run to the camp to thy brethren;

      (d) Though Jesse meant one thing, yet God's providence
          directed David to another end.

1Sa 17:18
17:18 And carry these ten cheeses unto the captain of [their]
      thousand, and look how thy brethren fare, and take their
      {e} pledge.

      (e) If they have laid anything to gauge for their
          necessity, redeem it out.

1Sa 17:23
17:23 And as he talked with them, behold, there came up the
      champion, the Philistine of Gath, Goliath by name, out of
      the armies of the Philistines, and spake according to the
      {f} same words: and David heard [them].

      (f) As in 1Sa 17:8,9.

1Sa 17:25
17:25 And the men of Israel said, Have ye seen this man that is
      come up?  surely to defy Israel is he come up: and it
      shall be, [that] the man who killeth him, the king will
      enrich him with great riches, and will give him his
      daughter, and make his father's house {g} free in Israel.

      (g) From taxes and payments.

1Sa 17:26
17:26 And David spake to the men that stood by him, saying, What
      shall be done to the man that killeth this Philistine, and
      taketh away the {h} reproach from Israel? for who [is]
      this uncircumcised Philistine, that he should defy the
      armies of the living God?

      (h) This dishonour that he does to Israel.

1Sa 17:29
17:29 And David said, What have I now done? [Is there] not a {i}
      cause?

      (i) For his father's sending was a just occasion, and also
          he felt himself inwardly moved by God's Spirit.

1Sa 17:33
17:33 And Saul said to David, Thou art not {k} able to go
      against this Philistine to fight with him: for thou [art
      but] a youth, and he a man of war from his youth.

      (k) Here Satan proves David's faith, by the infidelity of
          Saul.

1Sa 17:34
17:34 And David said unto Saul, Thy servant kept his father's
      sheep, and there came a {l} lion, and a bear, and took a
      lamb out of the flock:

      (l) David, because of previous experience with God's help,
          did not doubt to overcome this danger, seeing as he
          was zealous for God's honour.

1Sa 17:37
17:37 David said moreover, The LORD that delivered me out of the
      paw of the lion, and out of the paw of the bear, he will
      deliver me out of the hand of this Philistine. And Saul
      said unto David, {m} Go, and the LORD be with thee.

      (m) For by these examples he saw that the power of God was
          with him.

1Sa 17:40
17:40 And he took his {n} staff in his hand, and chose him five
      smooth stones out of the brook, and put them in a
      shepherd's bag which he had, even in a scrip; and his
      sling [was] in his hand: and he drew near to the
      Philistine.

      (n) So that by these weak means, It might be known that
          only God was the author of this victory.

1Sa 17:43
17:43 And the Philistine said unto David, [Am] I a dog, that
      thou comest to me with staves? And the Philistine {o}
      cursed David by his gods.

      (o) He swore by his gods that he would destroy him.

1Sa 17:46
17:46 This {p} day will the LORD deliver thee into mine hand;
      and I will smite thee, and take thine head from thee; and
      I will give the carcases of the host of the Philistines
      this day unto the fowls of the air, and to the wild beasts
      of the earth; that all the earth may know that there is a
      God in Israel.

      (p) David being assured both of his cause and of his
          calling prophecies of the destruction of the
          Philistines.

1Sa 17:48
17:48 And it came to pass, when the Philistine arose, and came
      and drew nigh to meet David, that David {q} hasted, and
      ran toward the army to meet the Philistine.

      (q) Being moved with a fervent zeal to be revenged of this
          blaspheme of God's name.

1Sa 17:55
17:55 And when Saul saw David go forth against the Philistine,
      he said unto Abner, the captain of the host, Abner, {e}
      whose son [is] this youth?  And Abner said, [As] thy soul
      liveth, O king, I cannot tell.

      (e) That is, of what family and tribe is he? He had
          forgotten David, even though he had received so great
          a benefit by him.