With his tenure as secretary of state rapidly pulling to a close, John Kerry made an impassioned defense for a two-state solution in the Israeli-Palestinian conflict on Wednesday.

Kerry said he is concerned that some Israeli politicians are rejecting it.

"If the choice is one state, Israel can either be Jewish or democratic; it cannot be both, and it won't ever really be at peace," said Kerry.

Speaking at the State Department, Kerry sharply criticized the Israeli government's construction of Jewish settlements in the West Bank. He said the policy was dimming the prospect of peace. In the more than hourlong address, Kerry also defended the U.S.'s refusal to block a U.N. Security Council resolution condemning Israeli settlements. The resolution led to fierce accusations that the Obama administration had turned against Israel.

"Friends need to tell each other the hard truths, and friendships require mutual respect," Kerry said.

Kerry also shut down accusations that the U.S. had engineered the U.N. resolution — a claim by Israel's leader, Benjamin Netanyahu.

In a speech shortly thereafter, the prime minister called Kerry's speech "a great disappointment." He warned that Kerry's vision could cause "big, big damage" to his country and said that his speech was "almost as unbalanced" as the United Nations resolution.

Kerry spearheaded talks to reach a peace between Israelis and Palestinians not long after taking the helm of the State Department in 2013. As The New York Times notes in its write-up of the speech:

"With his presidential hopes dashed after his loss to George W. Bush in the 2004 election, Mr. Kerry saw his time as secretary of state as a chance to make a true change in the Middle East. In three weeks, his near-constant travels around the world will end and his energetic diplomacy will suddenly terminate. He has one major accomplishment under his belt — the Iran nuclear deal — but he could not achieve his goals on the Israeli-Palestinian dispute, or in the Syrian civil war."

As we've previously reported, peace talks fell apart.

Earlier, President-Elect Trump took to Twitter to offer his view.

"We cannot continue to let Israel be treated with such total disdain and disrespect. They used to have a great friend in the U.S., but......." he tweeted Wednesday morning. "Not anymore. The beginning of the end was the horrible Iran deal, and now this (U.N.)! Stay strong Israel, January 20th is fast approaching!"

His choice for U.S. ambassador to Israel, David M. Friedman, has called the two-state solution an "illusion."

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