"Next we turned and went up along the road toward Bashan, and Og king of Bashan with his whole army marched out to meet us in battle at Edrei. The Lord said to me, "Do not be afraid of him, for I have delivered him into your hands, along with his whole army and his land. Do to him what you did to Sihon king of the Amorites, who reigned in Heshbon.” So the Lord our God also gave into our hands Og king of Bashan and all his army. We struck them down, leaving no survivors. At that time we took all his cities. There was not one of the sixty cities that we did not take from them—the whole region of Argob, Og’s kingdom in Bashan. All these cities were fortified with high walls and with gates and bars, and there were also a great many unwalled villages.We completely destroyed them, as we had done with Sihon king of Heshbon, destroying every city—men, women and children. But all the livestock and the plunder from their cities we carried off for ourselves.
So at that time we took from these two kings of the Amorites the territory east of the Jordan, from the Arnon Gorge as far as Mount Hermon. (Hermon is called Sirion by the Sidonians; the Amorites call it Senir.) We took all the towns on the plateau, and all Gilead, and all Bashan as far as Salekah and Edrei, towns of Og’s kingdom in Bashan. (Og king of Bashan was the last of the Rephaites. His bed was decorated with iron and was more than nine cubits long and four cubits wide. It is still in Rabbah of the Ammonites.)”
When the the Lord delivered the king of Bashan, his people and land into the hands of Israel two things were left for them to accomplish that were to completely take dominion over them (struck them down) and building/developing the possessions(cities were fortified with high walls and with gates and bars). God would not entrust into your hands anything until you know how to exercise dominion and possessing the wisdom and skill of developing that which must be entrusted unto you. Thus God would not have made fishes if there was no ocean, and so first thing first, you need knowledge, skill, and wisdom before "doing”.
Prayer:-pray for knowledge in using "power” that you have as a Christian
What to meditate on:
What is knowledge and wisdom?