“All we like sheep have gone astray; we have turned–every one–to his own way; and the LORD has laid on him the iniquity of us all.”
Who has “gone astray?” Who has “turned – every one – to his own way?” Is it not every human being? Is this not an Old Testament way of saying, “all have sinned and fall short of the glory of God”? (Ro 3:23)
Who can deny it? Therefore, when it says, “the LORD has laid on him the iniquity of us all,” it’s a clear reference to the “all” in the first part of the verse, which is a description of “all” mankind.
If the iniquity of “all” mankind was laid upon Christ, then it follows that salvation is available to “all,” to every human being.