Okay, if you ask me it is tough to "hear" God's voice speaking. It's not because I'm not listening. It's because I am human and human inhibitions and reasoning get in the way. We have to be very careful to discern and know God's voice.
That sort of jumped out at me as I read the passage of scripture where God spoke to Abraham about sacrificing Isaac. (Gen. 22:1-19 Msg)
"1 After all this, God tested Abraham. God said, "Abraham!"
"Yes?" answered Abraham. "I'm listening."
2 He said, "Take your dear son Isaac whom you love and go to the land of Moriah. Sacrifice him there as a burnt offering on one of the mountains that I'll point out to you." 3-5 Abraham got up early in the morning and saddled his donkey. He took two of his young servants and his son Isaac. He had split wood for the burnt offering. He set out for the place God had directed him. On the third day he looked up and saw the place in the distance. Abraham told his two young servants, "Stay here with the donkey. The boy and I are going over there to worship; then we'll come back to you."
6 Abraham took the wood for the burnt offering and gave it to Isaac his son to carry. He carried the flint and the knife. The two of them went off together.
7 Isaac said to Abraham his father, "Father?"
"Yes, my son."
"We have flint and wood, but where's the sheep for the burnt offering?"
8 Abraham said, "Son, God will see to it that there's a sheep for the burnt offering." And they kept on walking together.
9-10 They arrived at the place to which God had directed him. Abraham built an altar. He laid out the wood. Then he tied up Isaac and laid him on the wood. Abraham reached out and took the knife to kill his son.
11 Just then an angel of God called to him out of Heaven, "Abraham! Abraham!"
"Yes, I'm listening."
12 "Don't lay a hand on that boy! Don't touch him! Now I know how fearlessly you fear God; you didn't hesitate to place your son, your dear son, on the altar for me."
13 Abraham looked up. He saw a ram caught by its horns in the thicket. Abraham took the ram and sacrificed it as a burnt offering instead of his son.
14 Abraham named that place God-Yireh (God-Sees-to-It). That's where we get the saying, "On the mountain of God, he sees to it."
15-18 The angel of God spoke from Heaven a second time to Abraham: "I swear—God's sure word!—because you have gone through with this, and have not refused to give me your son, your dear, dear son, I'll bless you—oh, how I'll bless you! And I'll make sure that your children flourish—like stars in the sky! like sand on the beaches! And your descendants will defeat their enemies. All nations on Earth will find themselves blessed through your descendants because you obeyed me."
19 Then Abraham went back to his young servants. They got things together and returned to Beersheba. Abraham settled down in Beersheba."
There were several things that stood out. The first being that God audibly spoke to Abraham. In Abraham's day God spoke directly to specific people. Today anyone can hear God's voice because of Christ. When Christ ascended back to heaven the Holy Spirit was sent to guide us. (Jn.6:13-16; I Cor. 2:10-16; Rom 8)
Now, I got to thinking about that a little...is it easier for us today to hear God's voice, or harder? God spoke directly to Abraham and told him to sacrifice his son. Today more often than not God speaks to us through His Spirit, not an audible voice. If He would tell us to do something like that we may weigh both sides of the issue...do I do it or not...am I really hearing God's voice or is it mine? Abraham had a direct line to God...was it easier for him? Maybe. Was it easier for him to obey? Maybe, maybe not.
He was asked to sacrifice his only son... the son God had promised him. His lineage was to be through Isaac...the one that would be more than you could count. How could God ask him to do such a thing. Those questions may have been going over and over in Abrahams mind. We don't know what he was thinking. Scripture doesn't tell us. But be sure, he was a man and he was a father. It was not easy.
The road he took that day to Moriah must have been a long tumultuous rode. Inner battles must have been going on. He was human.
Too often we treat scripture as a fairy tale without really looking at the whole picture. When we read it helps if we put ourselves in the situation in which we are reading. We then can better understand the circumstances of what was taking place. These people in the Bible were just like us, going through struggle after struggle, yet hearing from God.
How much better do we have it? Each one of us has access directly to God. He may tell us to do things we do not understand. It is okay to question, but do not dwell on that question. If God tells you to do something, do it. He will come through. It may be just in the nic of time, but He will come through.
We have the issue of deciding if it is God's idea or our idea; but, if we are truly seeking God and reading His word, He will come through and we will discern what is right.
The important question is not, "Was it easier for people of the Old Testatment to hear God's voice," but "Am I listening to the still small voice of discernment God has given me through His Holy Spirit?"