Love for God and Worship

Today I was reading in Thomas Watson, and came across this great thought on our love for God in connection with biblical worship:

When Christians make little reckoning of God's worship, duties of religion are done in a dead, formal manner; if they are left undone, yet they are ill done. This is a sad symptom of a spiritual consumption; remissness in duty shows a decay in our first love. The strings of a violin being slack, the violin can never make good music; when men grow slack in duty, they pray as if they prayed not; this can never make any harmonious sound in God's ears. When the spiritual motion is slow and heavy, and the pulse of the soul beats low, it is a sign that Christians have lost their first love.