
Giving a drink of water to a weary traveler and to his camels was a good work that Rebekah could do. But being barren and then having a child was a supernatural work that God did in and through her. Both were great works because:

This series of seven books explains each one of forty-nine commands of Christ. The historical, cultural, and contextual meaning of each command is explained, along with guides for practical application to daily living.
Studies relating to the names of God and the 49 character qualities are also included in this beautifully-illustrated series of study guides.

If a young athlete wants to become an Olympic runner, his coach will give him a carefully designed set of instructions. To the degree that he embraces these disciplines, he will be successful in the race.
In a similar manner, God has designed a series of wise commands for us. To the extent we learn and apply these commands, to that extent we will achieve the great works that God has planned for us.
Each command is a practical application of God's love.