Hindsight is 20-20, Foresight is Faithbased
Doing our first lesson, we are asked how God was faithful to Joshua, to Israel, to Rahab, and to us as individuals.  To see His faithfulness we have to read ahead.  But we can't read ahead in our own lives as we are still living them.  Even so, we can do as the Psalmists and reflect on God's past faithfulness to us.  Many times it is that review that keeps us going forward.  While Paul wrote that we need to forget what lay behind, he did not mean that we forget God's history of faithfulness to us. 
What is God's history of faithfulness with you?  Think about it and rejoice in knowing because He does not change, neither will His faithfulness toward you.