Mark 11:12-14 and 20-23 says,
Now the next day, when they had come out from Bethany, He was hungry. And seeing from afar a fig tree having leaves, He went to see if perhaps He would find something on it. When He came to it, He found nothing but leaves, for it was not the season for figs. In response Jesus said to it, “Let no one eat fruit from you ever again.” And His disciples heard it… Now in the morning, as they passed by, they saw the fig tree dried up from the roots. And Peter, remembering, said to Him, “Rabbi, look! The fig tree which You cursed has withered away.” So Jesus answered and said to them, “Have faith in God. For assuredly, I say to you, whoever says to this mountain, ‘Be removed and be cast into the sea,’ and does not doubt in his heart, but believes that those things he says will be done, he will have whatever he says.”
Jesus meant exactly what He said. If you believe something in your heart and say it with your mouth, you will have what you say.
Faith happens when your heart and lips come together. But faith isn’t about just working some principle. It’s not about having faith in yourself. Jesus began by saying, “Have faith in God.”
The mountain represents an insurmountable obstacle in your life – a difficulty too big for you to handle. That obstacle can literally be removed by your faith in God.
One way to exercise your faith is by speaking to your mountain, letting your heart and lips agree. I’m not talking about words you just say casually, but what truly comes from deep inside of you – the things you say as a habit of life.
Jesus cursed the fig tree on his way from Bethany to Jerusalem. Later, on his way back, the tree still looked exactly the same. The next morning, when they passed by again, Peter said, “Master, the tree You cursed has withered away,” meaning it had dried up from the roots. The decay had begun in the unseen realm and worked its way out into the seen realm.
You can curse the works of the devil, and they will dry up from the roots as well.
This is why you ought to speak blessings over your business, your family, your physical body, your relationships, and your possessions. Because if God can keep the Israelites’ shoes from wearing out for 40 years in the wilderness, He can surely keep your family or business from falling apart.
Never underestimate the power of speaking in line with what you believe God can do – whether according to the promises in His Word or the promises He whispers to your heart through His Spirit.