latest single blog post from particulat tags in shopify

Question

Hi i am trying to display, Latest single post from particular tags, but i am not able to do so, can some one please check this code

      {% for article in blogs.all-posts.articles limit:1%}
        {% if article.tags contains "Glen Recipes" %}
          {{ article.published_at | date: "%b %d, %Y" }}<br/>
          {{ article.title | link_to: article.url }}<br/>
        {% endif %}
      {% endfor %}
      <h2>TAg2</h2>
      {% for article in blogs.all-posts.articles limit:1%}
        {% if current_tags contains 'offers' %}
          {{ article.published_at | date: "%b %d, %Y" }}<br/>
          {{ article.title | link_to: article.url }}<br/>
        {% endif %}
      {% endfor %}