Based on your comment, I imagine that you know which text should be put under the span

const data = [
  {
    id: "text1",
    text: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam sollicitudin odio a luctus ornare. Pellentesque nisl tis tellus nec, dapibus turpis. In hac habitasse platea vitae.",
  },
];

const textToSpan = 'dolor sit amet';

In this case you can split your string and render with something like this:

const aText = data.text.split(textToSpan);

const aTextRender = aText.reduce((result, t) => {
  if (result.length) {
    result.push(<span>{textToSpan}<span>);
  }
  result.push(t);
  return result;
}, [])

return (
  <p>
    {aTextRender}
  <p>
);

Code not tested though :o

This should do your work!

    data[0].text.replace("dolor sit amet", "<span>dolor sit amet</span>");