Voices, lost and finding.

I'm planning several worship services and events at the same time right now. It makes for interesting cross-referencing.
At SUP, our Sunday evening service at SU, we are still working with Exodus. For those who do not have the lectionary in their back pockets, that means we're talking about the Ten Commandments this week, after spending 2 weeks on the whining of the Israelites. Just moments after escaping slavery, they start grumbling, and then God gives them these rules to follow. I'm still stuck on the grumbling.
The Israelites have a voice for the first time in history. Some of the first words that we hear them say are words of complaint. They have been abused, and silenced from expressing their thoughts in a meaningful way, for so long. Now, their circumstances are dire, but they have agency with which they may speak. They complain.
I am also planning for an event of the Reconciling Ministries Network right now. The RMN demands rights for all people in the United Methodist Church, regardless of (among other factors) sexual orientation and gender identity. Among persons in the RMN, many are using audible voices for the first time. Many are gay, lesbian, transgender, intersexed, bisexual, Queer or questioning persons who have never been truly heard. Many are pastors, stripped of their credentials because they used their voices to share. Those who are not in such circumstances speak for persons who are.
The first communication out of our mouths, as humans, is crying. I cannot remember being born, however, i'm sure that the transition is rather rough. We complain about being cold and helpless when we arrive, granted a voice to which one will listen for the first time. We are tired and undoubtedly in pain.
So the Israelites, a tired, hungry, thirsty, pained, wandering people are granted an audible voice for the first time in history. They must voice their discontent, and we must listen. The same way that we must listen to all persons freshly empowered to speak. How can we learn about the ways in which the power of some hurts others if we fail to listen to that communication?
God sets a good example here. The people say they are hungry; God supplies them manna and quail. They say they are thirsty; God provides them water from the rock. If i am to be God's person, i must be (no matter what else i am) attentive to the communication of those inside and freshly liberated from slavery and oppression of every kind.
What is my responsibility about my own complaints?