But Elisabeth is now given a further revelation from God which was not given to Zacharias, and the mother of the last Old Testament prophet speaks herself as a prophet before her child is born. She speaks with a loud voice, with great joy and conviction, to Mary.
Elizabeth is given these words for Mary. The prerequisite for any satisfying communion with God is assurance, certainty that we are heard, that we believe. She will give thanks: only a believing heart can. It is the same at any level in the Christian life. We must trust God for salvation, but also for any help subsequent to conversion. That does not mean that we believe it must come to pass, but rather we believe that God can do it. If we pray doubtingly and cannot believe he can answer us, then he will not reply. Similarly, when we intercede, we don’t have to believe those we pray for will be saved, but we have to believe that God is able to save them. Likewise for communion, we must go in faith to be blessed. Someone once complained to me about the Lord’s Supper in our church. He came from a church where the worship service is quite a production: choirs, and shimmering organ music, and most touching hymns, and preachers skilled in evoking pathos. He complained he could never engage with Christ in our service. But we do not need all those sensory helps; we approach God by faith.