Unable to display roles in Laravel due to in_array error

I have role edit form which I want to be able to edit the role permissions. In my controller I've added this

public function edit($id)
{
    $role = Role::find($id);
    $permission = Permission::get();
    $rolePermissions = DB::table("permission_role")->where("permission_role.role_id",$id)
                       ->pluck('permission_role.permission_id','permission_role.permission_id');

    return view('roles.edit',compact('role','permission','rolePermissions'));
}

Then I've trying to display which permissions has this role so I can check/uncheck and edit them. In my view I have this loop

@foreach($permission as $value)

      <label>
      </label><br/>
@endforeach

But I've got the error for the array

1. in_array() expects parameter 2 to be array, object given

on this line:

What is the problem here?

via Chebli Mohamed