Allah informs that His servants who have Taqwa and worship Him by performing the obligations and abandoning the forbidden things, will be in gardens and springs on the Day of Judgement. This means they will be in the opposite condition of the wretched people, who will be in shades of Al-Yahmum, which is purtrid, black smoke. Allah says,
{And fruits, such as they desire.} meaning, and from other types of fruits, they will have whatever they request.
{Eat and drink comfortably for that which you used to do.}

meaning, this will be said to them out of kindness for them. Reestablishing what He has previously mentioned, Allah says;
{Verily, thus We reward the Muhsinin.}

meaning, “this is Our reward for whoever does good deeds.’
{Woe that Day to the deniers!}

A Threat for Whoever denies the Day of Judgement
Allah says,
{Eat and enjoy yourselves for a little while. Verily, you are criminals.}

This is an address to the deniers of the Day of Judgement. It is commanding them with a command of threat and intimidation. Allah says,
{Eat and enjoy yourselves for a little while.}

meaning, for a period of time that is short, small and brief.
{Verily, you are criminals.} meaning, then you all will be driven to the fire of Hell which has already been mentioned.
{Woe that Day to the deniers!} This is similar to Allah’s statement.
{We let them enjoy for a little while, then in the end We shall oblige them to a great torment.}