template.html

{% for post in blog_posts %}
    {{ post.description }}
{% endfor %}

views.py

from django.views.generic.base import TemplateView
from blog.models import Post

class BlogView(TemplateView)
  template_name = "template.html"
  
  def get_context_data(self, **kwargs):
    context = super(BlogView, self).get_context_data(**kwargs)
    context['blog_posts'] = Post.objects.all()
    
    return context