Dear Self, You really should be singing more. You should be singing more than at gathered worship with the church. You should continue singing in the car, while working in the yard and in your home. And when you sing you should do so with more than lungs and lips. You should sing with your soul.
And stop rolling your eyes!
People sing about the things that capture their hearts, things that give them joy, or allow them to express sorrow. People sing of heroes, victory, longing, and hope. Does anyone have more reasons to sing than you? As a sinner who has been forgiven, a slave who has been set free, a blind man who has received sight, a spiritual cripple who has been healed - all by the gospel, you have real reasons to be known as a man of song!
It is one thing to tell the world of God's redemption, it is another to sing of it. It's easy to parrot truth, but to sing of it - from the soul - reveals how you feel. Song is the natural and appropriate response to the gospel, because it is one of the highest expressions of joy.
So why aren't you singing "always, only for your king?" Have the mercies of God grown small in your heart? Is there little joy, little gratitude, little wonder? Do you just not feel like singing? The confession of your sins and gospel meditation will lead you there. Get on it!
From the great hymns of old, to the new songs echoing the wonders of God's mercy you have more means of finding songs of redemption than any other generation before you. So join the chorus of God's people who have always been known as a people who sing.