Limit latest news usinf foreach - php

Question

How Can I set a limit for "Recent News" posts? I wanted to set a limit for 4, but it's showing all of them. As a bonus insert a "SEE ALL NEWS" button in the end...
I have this:
#foreach($news as $news)
#php
$news_img = ($news['anexo'] ? get_image_small_url($news['anexo']['ane_arquivo']) : '');
$news_img = $news_img ?: 'http://placehold.it/300.jpg?text=%20';
$news_txt = (empty($news['pub_resumo']) ? $news['pub_conteudo'] : $news['pub_resumo']);
#endphp
<div class="media media-thumb">
#if($news_img)
<div class="media-left">
<a href="{{ url('/news/'.$news['post_id']) }}">
<img class="media-object" src="{{ $news_img }}" alt="{{ $news['pub_titulo'] }}">
</a>
</div>
#endif
<div class="media-body">
<div class="post-meta">
<span class="published">{{ date('d/m/Y', strtotime($news['pub_data_cadastro'])) }}</span>
#if(!empty($news['categories']))
<span class="categories">{{ join(', ', array_column($news['categories'], 'tcp_nome')) }}</span>
#endif
</div>
<h4 class="media-heading">
{{ $news['title'] }}
</h4>
<p>{{ get_excerpt($news_txt, 180) }}</p>
</div>
</div>
#endforeach
The controller
$news = Publicacao::select('publicacao_id', 'pub_titulo', 'pub_conteudo', 'pub_resumo', 'pub_data_cadastro', 'anexo_id')
->with(['categorias', 'anexo'])
->where('pub_tipo', 'NOT')
->where('pub_status', 'PUB')
->limit(5)
->orderBy('pub_data_cadastro', 'desc')
->get();
$this->data['news'] = $news->toArray();
return view('site.home', $this->data);
}
Cheers!