Beleaguered Illinois Rep. Aaron Schock on Thursday expressed disappointment over his dismissal from the US Congress, saying he is leaving with humility and sadness.

Schock vowed to work ‘tirelessly’ with all his efforts to make amends to the constituents and those whom he has let down.

While making his farewell speech, the Republican leader said that his departure from Congress must not be seen as the “end of the story, but rather the beginning of a new chapter his life”.

33-year-old Schock had announced his decision to resign from Congress on March 17 after a month-long series of revelations about his business agreements as well as his lavish spending on everything, ranging from his office decor to overseas travel.

The expenses and business deals of Schock done during his tenure in Congress is being investigated by the Justice Department. The officials of Federal Bureau of Investigation (FBI) have also commenced issuance of subpoenas to the witnesses, according to a person familiar with the matter.

Schock, who will have his last day in office on Tuesday, made indirect reference to the investigation, saying that he faces adversity like others before him.

Schock said that he is completely inspired by another Illinois Republican and famous personality, Abraham Lincoln, who had left Congress after his one-year term for becoming president.

Making special mention of Lincoln, Schock said, “Few faced as many defeats in his personal business and public life as he did. “His continual perseverance in the face of these trials — never giving up — is something all of us Americans should be inspired by, especially when going through a valley in life.”

“I believe that through life’s struggles we learn from our mistakes. I know that God has a plan for my life,” embattled Schock said.

On Thursday, Schock voted in the Congress for the final time. Meanwhile, the Congress has prepared for a two-week recess.