Opinion by

We think the learned court committed reversible error in that part of the charge embraced in the fourteenth assignment which reads as follows: “You are not bound by our opinion, but we tell you very frankly that we do *391not believe he is guilty of manslaughter, because there is no evidence in this case of any sudden heat or passion or provocation at all. Even the defendant himself does not contend that Holland did anything to him, and no other witness does. There was, so far as the evidence in this case goes, on both sides, absolutely nothing that happened there between this man and Holland, nothing at all. Now, that being so, either one of two things happened. Either the contention of the Commonwealth is correct that this man was angry or cross and stepped out there and stuck this knife into Holland, or the contention of the defense is correct that it was all the result of an accident when he was knocked down.”

We have uniformly held that a trial judge may express his opinion in charging the jury in a homicide case on the weight and effect of the evidence and that he may say to the jury there is no evidence in the case to reduce the crime to manslaughter. We have not held, however, that he may express such an opinion where it is not warranted by the evidence or would amount to binding instructions; on the contrary, we have imposed these limitations in the cases in which his right to express an opinion was sustained: McClain v. Commonwealth, 110 Pa. 263; Commonwealth v. Orr, 138 Pa. 276; Commonwealth v. McGowan, 189 Pa. 641. In the McClain case, repeated in the McGowan case, we said: “In charging a jury in a homicide case, the court may express an opinion that there is nothing in the case to reduce the crime to manslaughter, where the same is not given as a binding instruction, and is moreover warranted by the evidence.”

The opinion of the learned judge that the defendant was not guilty of manslaughter was predicated on the judge’s statement that “there is no evidence in this case of any sudden heat or passion or provocation at all,” that “even the defendant does not contend that Holland (the deceased) did anything to him,” and that “there was, so far as the evidence in this case goes, on both *392sides, absolutely nothing that happened there between this man and Holland, nothing at all.” This was a misstatement of the evidence, and withdrew from the jury the defendant’s own tou Imony. The defendant testified, inter alia, as follows: <r\\. Did he (Donohue) strike him (the defendant) once or more than once? A. More than once, more than once. Q. How many times? A. I do not know how many trues, he always was jabbing me, and I was afraid. I am not a strong fellow. And I said, ‘What is the matter with you, Jim?’ I had the knife in my hand. I says, ‘What’s the matter with you? You. fighting.’......Q.. Why did you want to go in the house with the knife? A. And Swany (alias Donohue) did not leave me go, and he struck me, and when I was. going towards Swany I asked him, ‘What’s the matter with you?’ Tibien the boarding boss (the deceased) struck me, and. Swany struck me again and I fell towards him and: pat the knife in.”

. If the jury had believed this evidence, they might have found that the defendant was assaulted by the deceased and Donohue immediately before the fatal wound was given, and that while smarting from the blows and in heat of passion he struck the deceased with the knife which resulted in Holland’s death. It is manifest that the evidence was vital!, / important to the defendant. If believed, it might haw justified a verdict of manslaughter. It should, therefore, have been submitted with proper instructions for the consideration of the jury. The error in telling the jury there was no such evidence was not cured by the suggestion of the court that the jury were not hound iby its opinion of the evidence. The positive declaration lay the court of the absence of such evidence could mn>t be dislodged from the minds of the jury by the suggestion?! that they were the judges of the facts. Such a dee iaration Is not simply an opinion of the judge on all the evidence in the case; it is a positive instruction to th o jury that there is no such evi*393dence on the question at issue, which in this case was of vital moment to the defendant.

It was error for the court to charge that “now, that being so, either one of two things happened. Either the contention of the Commonwealth is correct that this man was angry or cross and stepped out there and stuck this knife into Holland, or the contention of the defense is correct that it was all the result of an accident when he was knocked down.” It amounted to a binding instruction that the jury must find a verdict of murder in the first degree or of accidental homicide. It deprived the jury of the right to determine the facts upon the evidence and, if in their opinion the evidence warranted, to find the defendant guilty of manslaughter. The contention of the parties could not control the jury as to the verdict they should render. The fact that the Commonwealth urged a verdict of murder in the first degree and the defense set up accidental homicide did not prevent the jury from returning a verdict of manslaughter if, in their "judgment, the credible evidence justified such a verdict. If the jury disbelieved the Commonwealth’s testimony and gave credence to the defendant’s story that he inflicted the fatal blow when in a rage or passion caused by the assault made on him by the deceased and Donohue, the trial could have resulted in a verdict of manslaughter. The grade of the offense was for the jury under the evidence, and it was error for the court below to withdraw the question from them.

The first thirteen assignments of error raise the single question of whether the trial judge was warranted in issuing an order for talesmen before the regular panel of jurors had been exhausted. Counsel do not agree as to the facts necessary to the proper adjudication of the question and we will, therefore, not dispose of it. The case is reversed for another reason and the Question will not necessarily arise on another trial.

The fourteenth assignment of error is sustained, and the judgment is reversed .with a venire facias de novo.