Gen 14:22 Abram said to the king of Sodom, "I have sworn to the Lord God Most His, possessor of heaven and earth, that I will not take a thread or a sandal thong or anything that is your, for fear you would say, 'I have made Abram rich'.
Now there are a couple of ways of looking at this verse. One is from someone who thinks they can't actually have a converesation with God. Someone like that has to think that Abram came up with this idea all by himself. So Abram just told God, and of course God did not talk to Him. That is what most people would think, because most people don't live by faith. They think the Word of God is far off in a place like heaven, so He might hear but can't talk to us.
There is another understanding of the same verse which results from living by faith in a God that is near usm so that we can inquire and hear from, just like you might hear from someone in the same room as you. They see that Abram swore to God, and understand that he was having a conversatoin with Him. That is God was saying things to Abram, and Abram was responding and saying things to God, based upon what he was told by God. If you don't understand that the Word is near you, then you can understand what I am talking about. But if a person does have regualr conversation with the Lord, they realized that Abram was swearing (promising) to God because God was talking to him.
Now we don't know exactly how the conversation between God and Abram went, but pray is a conversation with God, so since Abram talked to God, God also talk to Abram. We are not to say in our heart 'who will ascend into heaven', that is to bring Christ down. But rather we preach the Word is near us, in our mouth and in our heart, so that we can have a conversation with Him at any time. But perhaps not everyone understanding that. Some can only grasp that Abram talked to God, but can't understand that of course Abram talking to God meant he was having a conversation with God.