Without trying to sound trite, it really IS about Jesus. He is the Lord of Grace. The Holy Spirit is fully in there too as He is called the Spirit of Grace (Heb 10:29). It is also about belief and unbelief in Jesus. He is either fully capable of saving and empowering us in righteousness, or He is not. Leaning to Law to assist with righteousness means we think that Jesus is less than able, which practically means we no longer trust His abilities to comprehensively save or to rule. Sounds very much like unbelief to me!