"It is not my responsibility to judge the evidence here. It is yours," Judge Merchan told the jurors as he began his instructions for their deliberations.

"You are the judges of the facts, and you are responsible for deciding whether the defendant is guilty or not guilty."

The judge instructed jurors on avoiding "stereotypes" or "implicit biases" in their deliberations.

"As a juror you are asked to make a very important decision about another member of the community," he said.

Judge Juan Merchan took his seat on the bench, and Trump flashed a closed mouth smile when the judge said good morning in his usual fashion.

Before bringing the jury back into the courtroom, Merchan asked the parties to confirm the proposed verdict form.

Prosecutor Josh Steinglass flagged a minor typo, but both sides appeared to be in agreement about the form, which will the jury will fill out once they render a verdict.

After the jury was brought into the courtroom, Merchan told them the reading of the jury charge will take approximately an hour.

Former President Trump did not speak with reporters as he entered the courtroom this morning, but instead made a series of posts on social media.

Referring to prosecutors' five-hour closing statement yesterday, Trump wrote, "THE D.A.’s OFFICE WAS ALLOWED TO GO ON WITH 5 HOURS OF BULL---- YESTERDAY."

The defense's closing argument took three hours.

The prosecution team has entered the courtroom ahead of this morning's jury charge.

Prosecutors Josh Steinglass, Matthew Colangelo and Rebecca Mangold are seated at the counsel table, and seven other members of the district attorney's team are in the gallery.

Former President Trump entered the courtroom minutes later.

As ABC News reported previously, the U.S. Secret Service spent considerable time working with New York City court and jail officials to determine what would happen if the judge, as threatened during trial, ordered former President Trump to be incarcerated for contempt -- a situation that did not come to pass.

According to an official briefed on the matter, U.S. Secret Service planners have not started the process of determining arrangements for Trump to be imprisoned at a New York state penitentiary in the event he is convicted. Because Trump is charged with nonviolent crimes, has no criminal record, and was allowed to remain free before trial, it is believed that there is no way that a conviction would lead to immediate incarceration.

If Trump is convicted, the Secret Service will spend the time prior to sentencing -- which could be months -- working with New York state prison officials to determine how imprisonment would work. An official told ABC News that potential questions could include, would USSS agents be armed inside prisons where firearms are prohibited? What prison would Trump be assigned to? Where would protection agents be stationed in relation to Trump? Those details, among many others, would have to be hammered out, the official said.

The Secret Service specifically avoided planning on a possible prison sentence during the trial so Trump and his loyalists could not accuse them of taking sides against the former president, the official said.

-Josh Margolin