All kinds of memories can be evoked by certain sounds, sights or smells. In Joshua 4:1-24, God instructed the people of Israel to gather large stones from the bed of the River Jordan while the waters were held back and to create a memorial on the banks of the river. By this memorial, the people of Israel were taught to remember the Lord’s power who saved them, to fear the Lord’s name because it is great and to know for sure that they were His people. All believers know of God’s saving grace and can testify to what God has done by the power of the gospel at work. They will also know that God no longer bears witness through memorials but does so through His ‘living stones’ who can speak openly of His grace at work in them.