Main message: Our promise to serve Lord Jesus to the end.

Bible references:

• V1. "I have promised" (Psalm 119:57)

"Master" (Jude 1:4)

"not fear the battle" (Joshua 10:8)

"my Guide" (Psalm 31:3)

• V3. "tempting" (Matthew 6:13)

"My foes" (Psalm 69:18)

"shield" (Psalm 28:7)

"guardian of my soul" (1 Peter 2:25)

Keywords: Jesus, I have promised, serve, Master, Friend, not fear, nor wander, Guide, glory, servant, grace, near, shield, Guardian of my soul

Interpretation notes:

• This hymn is in AA′ form. 

• The rhythm is identical in both sections. 

• The first and third systems have almost the same melody, except for the first note of the third system, which is A♯. 

• The melody rises and reaches E in the last system, then returns to a lower register.