“And to the angel of the church in Philadelphia write: ‘The words of the holy one, the true one, who has the key of David, who opens and no one will shut, who shuts and no one opens. “‘I know your works. Behold, I have set before you an open door, which no one is able to shut. I know that you have but little power, and yet you have kept my word and have not denied my name. Behold, I will make those of the synagogue of Satan who say that they are Jews and are not, but lie—behold, I will make them come and bow down before your feet, and they will learn that I have loved you. Because you have kept my word about patient endurance, I will keep you from the hour of trial that is coming on the whole world, to try those who dwell on the earth. I am coming soon. Hold fast what you have, so that no one may seize your crown. The one who conquers, I will make him a pillar in the temple of my God. Never shall he go out of it, and I will write on him the name of my God, and the name of the city of my God, the new Jerusalem, which comes down from my God out of heaven, and my own new name. He who has an ear, let him hear what the Spirit says to the churches.’ (Revelation 3:7-13 ESV)
God has opened the door to our future, and it is a door no one can shut.
Has a door ever shut on you? They always say when one door closes another opens. I wonder though if that door that closes was never door we were intended to go through. The above writing to the church in Philadelphia says that God opens the door and it can never be shut. We need to discern what door we are to go through and then hold fast to what we have been given. Because the support and faith we have been given is enough to get us through and God will set our enemies on the edge and keep them from controlling us. The little power we have is enough, so hold fast and know that the door to your future has been opened and God is waiting for you on the other side.
But you, O Lord my Lord, 
On a Sabbath, while he was going through the grainfields, his disciples plucked and ate some heads of grain, rubbing them in their hands. But some of the Pharisees said, “Why are you doing what is not lawful to do on the Sabbath?” And Jesus answered them, “Have you not read what David did when he was hungry, he and those who were with him: how he entered the house of God and took and ate the bread of the Presence, which is not lawful for any but the priests to eat, and also gave it to those with him?” And he said to them, “The Son of Man is lord of the Sabbath.” (Luke 6:1-5 ESV)
Then he entered the temple and began to drive out those who were selling things there; and he said, “It is written, ‘My house shall be a house of prayer’; but you have made it a den of robbers.” Every day he was teaching in the temple. The chief priests, the scribes, and the leaders of the people kept looking for a way to kill him; but they did not find anything they could do, for all the people were spellbound by what they heard. (Luke 19:45-48, NRSV)