"Wherewithsoever!"

 "And inasmuch as not without an oath he was made priest:" (Hebrews 7:20 KJV)

  "Tell me, you who want to live under the law, do you know what the law actually says? The Scriptures say that Abraham had two sons, one from his slave wife, and one from his freeborn wife. The son of the slave wife was born in a human attempt to bring about the fulfillment of God's promise. But the son of the freeborn wife was born as God's own fulfillment of his promise." (Galatians 4:21-23 NLT)

 Now, about that faith being secure: as it was with Abraham, he had faith in God, but sometimes he did waiver in leaving everything in God's hand, trying to take care of things on his own. Each and every time he tried to find a way on his own, he ended up with a problem. 

 We should be able to understand what that looks like, as I am sure that we all have done that, at least a few times in our walk with the Lord. These are certain things that are brought on by not trusting God will take care of whatever you are dealing with, expecting that He might want you to do it on your own. 

 As it is, the other day I heard a massage about "the big rock," where God tells a man to push on a rock that he could not budge. He tried and he tried, but couldn't get the rock to move, not even an inch. Discouraged and overwhelmed, he cried out to the Lord, saying, "Why did you ask me to do something I could not do?" And the Lord answered, "You did what I said, and you pushed on that rock. I never asked you to move it!" 

 However, you interpret that, it basically means to trust in the Lord, no matter what! Maybe God just wants us to be strengthened by the trial he gives us, as we are taken wherever and however, sometimes not knowing what to do. Much like Abraham and his many mistakes along the way, God had his back, but Abraham sometimes thought he needed to help God get things done. 

 What that means, is that Abraham never lost faith in God, even though he tried to do things himself. We all tend to do that now and again, thinking that God wants us to move something on our own. But when God makes a promise, we are meant to wait on Him to make the move, and just do what we are told...

"We can rejoice, too, when we run into problems and trials, for we know that they help us develop endurance. And endurance develops strength of character, and character strengthens our confident hope of salvation. And this hope will not lead to disappointment. For we know how dearly God loves us, because he has given us the Holy Spirit to fill our hearts with his love." (Romans 5:3-5 NLT)