Commitment by definition can very well be a pledge or agreement to do something (especially as it relates to something present, lasting well into the future). For those who have chosen to listen to this beautiful song and read this, please consider making or (for some of us) renewing your commitment to live for GOD.
But also, consider this: "When thou vowest a vow unto God, defer not to pay it; for he hath no pleasure in fools: pay that which thou hast vowed. Better is it that thou shouldest not vow, than that thou shouldest vow and not pay." - Ecclessiates 5:4-5 (KJV)