In Psalm 48 verses 12-13, the psalmist invites the reader to inspect the city of Zion, its towers, its bulwarks (a defensive wall) and the city’s palaces.
This is was an invitation to know and be familiar with the strength of the city and the security it provided. To be familiar with how safe and fortified it was.
He says in verse 13, to do this so one can tell “the generation following”, the next generation, and then in the next verse he attributes the strength of the city to God. Those who familiarised themselves with the strength and security of Zion, familiarised themselves with the strength and security God provided and His goodness in doing so.
We need to become familiar with God, know Him intimately, deeply, experience his goodness, strength and security, for our sake but also so we can tell “the generation following”.
Telling others about God, especially the next generation, our children will not be convincing if our knowledge of God is vague, theoretical and intellectual. We must know Him with first hand experience, then we will be convinced and sound convincing.
The best thing we can do to influence others to know God is to know Him as best we can ourselves. To be as familiar with Him and close to Him as we can be. Out of that comes the most powerful testimony and witness.
We must be familiar with God for our sake and the sake of others.