New Revised Standard Version
Since he wanted to find out what Paul was being accused of by the Jews, the next day he released him and ordered the chief priests and the entire council to meet. He brought Paul down and had him stand before them.

Contemporary English Version
The next day the commander wanted to know the real reason why the Jewish leaders had brought charges against Paul. So he had Paul's chains removed, and he ordered the chief priests and the whole council to meet. Then he had Paul led in and made him stand in front of them.

New American Bible
The next day, wishing to determine the truth about why he was being accused by the Jews, he freed him and ordered the chief priests and the whole Sanhedrin to convene. Then he brought Paul down and made him stand before them.

Douay-Rheims Bible
But on the next day, meaning to know more diligently for what cause he was accused by the Jews, he loosed him and commanded the priests to come together and all the council: and, bringing forth Paul, he set him before them.

But on the next day, meaning to know more diligently for what cause he was accused by the Jews, he loosed him and commanded the priests to come together and all the council: and, bringing forth Paul, he set him before them.

because.

Acts 21:11,33 Who, when he was come to us, took Paul's girdle: and binding his own feet and hands, he said: Thus saith the Holy Ghost: The man whose girdle this is, the Jews shall bind in this manner in Jerusalem and shall deliver him into the hands of the Gentiles. . . .

Acts 23:28 And meaning to know the cause which they objected unto him, I brought him forth into their council.

Acts 26:29 And Paul said: I would to God that both in a little and in much, not only thou, but also all that hear me this day, should become such as I also am, except these bands.

Matthew 27:2 And they brought him bound and delivered him to Pontius Pilate the governor.

commanded.

Acts 22:5 As the high priest doth bear me witness and all the ancients. From whom also receiving letters to the brethren, I went to Damascus, that I might bring them bound from thence to Jerusalem to be punished.

Acts 5:21 Who having heard this, early in the morning, entered into the temple and taught. And the high priest coming, and they that were with him, called together the council and all the ancients of the children of Israel: and they sent to the prison to have them brought.

Acts 23:15 Now therefore do you with the council signify to the tribune, that he bring him forth to you, as if you meant to know something more certain touching him. And we, before he come near, are ready to kill him.

Matthew 10:17 But beware of men. For they will deliver you up in councils, and they will scourge you in their synagogues.