Commentaries:
Barnes' Notes
Blessed be the Lord my strength - Margin, as in Hebrew, "my rock." See the notes at Psalms 18:46, where the same expression occurs in the Hebrew.
Which teacheth my hands to war - Hebrew, "To the war." See the notes at Psalms 18:34. The Hebrew is not precisely alike, but the sense is the same.
And my fingers to fight - Hebrew, my fingers to the fight. That is, he teaches my fingers so that I can skillfully use them in battle. Probably the immediate reference here is to the use of the bow - placing the arrow, and drawing the string.
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.