How do we know spiritual maturity is indicated by humility?

Spiritual maturity, according to Scripture, manifests through an ever-deepening understanding of one’s own flaws and the infinite grace of Jesus. As believers grow in grace, they become more aware of their need for Christ, reflecting the teaching of Christ that ‘whosoever will be chief among you, let him be your servant.’ This lowliness in one's view of self stands in stark contrast to worldly wisdom that equates age with achievement or prominence. Mature disciples recognize that their spiritual age is best gauged by their growing love for Jesus and their decreasing self-confidence.