If those who followed Moses were responsible to surrender, trust, and persevere in following God’s leader, we are much more responsible to do the same with a greater leader, Jesus.
The point is clear. As the Holy Spirit speaks, we must hear His voice and not allow our hearts to become hardened. We hear the Spirit speak in the Scriptures, in the heart of His people, in those He draws to salvation, and by His works.
There is urgency to the voice of the Holy Spirit. He never prompts us to get right with God tomorrow, or to trust in yesterday – the Holy Spirit only moves us to act today.
Charles Spurgeon pointed out one reason why the Holy Spirit is so urgent: “Besides, he waits to execute his favourite office of a Comforter, and he cannot comfort an ungodly soul, he cannot comfort those who harden their hearts. Comfort for unbelievers would be their destruction. As he delights to be the Comforter, and has been sent forth from the Father to act specially in that capacity, that he may comfort the people of God, he watches with longing eyes for broken hearts and contrite spirits, that he may apply the balm of Gilead and heal their wounds.” (Guzik)