At-Tariq Verse 9

on the Day all secrets will be disclosed.

On the Day when all secrets will be disclosed,

upon the day when the secrets are tried,

On the Day when secrets are laid bare

On a Day whereon secrets shall be out.

The Day that (all) things secret will be tested,

On the Day when man's deepest secrets shall be put to the test

The day all secrets are examined

A day when the secrets will be examined.

on the day when the secrets are examined

On the Day when all things (that remained or were kept) secret will be made manifest;

On the Day, when the hidden things shall be exposed,

A day/time the secrets/intentions be tested

A day when the secrets will be examined.

On the day when the secrets shall be tried

The Day when all the secrets (deeds, prayers, fasting, etc.) will be examined (as to their truth).

Then he will have no strength nor helper.

On the day when hidden things shall be made manifest,

On the day when hidden thoughts shall be searched out.

On the day when all secrets will be made public,

on the Day when consciences are examined,

The Day when all the secrets will be examined.

On the Day when secrets are disclosed,

On the Day when the secrets are disclosed.

on the day when [all] secrets, the hidden convictions and intentions of the hearts, are inspected, [when] they are examined and revealed,

The Day when all the secrets will be examined.

meaning, on the Day of Judgement the secrets will be tested.

This means that they will be exposed and made manifest. Thus, the secret will be made open and that which is concealed will be well known.

It is confirmed in the Two Sahihs on the authority of Ibn Umar that the Messenger of Allah said,

يُرْفَعُ لِكُلِّ غَادِرٍ لِوَاءٌ عِنْدَ اسْتِهِ يُقَالُ هذِهِ غَدْرَةُ فُلَنِ بْنِ فُلَن

Every betrayer will have a flag raised for him behind his back, and it will be said,

`This is the betrayal of so-and-so, the son of so-and-so.'

Concerning Allah's statement

That is on the Day of Resurrection, when secrets are brought into the open and man’s countenance will reveal, against his will, all he had hoped would be kept secret and will betray him to his fall or to his exultation