Psalm 131: Humility and submission

Is there ambition in my heart?.
Search, gracious God, and see;
Or do I act a haughty part?
Lord, I appeal to thee.

I charge my thoughts, be humble still,
And all my carriage mild,
Content, my Father, with thy will,
And quiet as a child.

The patient soul, the lowly mind,
Shall have a large reward:
Let saints in sorrow lie resigned,
And trust a faithful Lord.