"Four senior ministers, appearing one after the other and each taking a totally different diplomatic direction, created a grotesque spectacle," he said, referring to a series of presentations by senior ministers at the Herzliya security conference yesterday.
During back-to-back presentations, Justice Minister Tzipi Livni said Israel should seek to resume peace talks with the Palestinians despite the establishment of a Hamas-backed unity government; Interior Minister Gideon Saar spoke in favour of maintaining the status quo; Economy Minister Naftali Bennett called for the annexation of parts of the West Bank.
And Finance Minister Yair Lapid warned that if there was any move to impose Israeli sovereignty in the West Bank he would lead his centrist Yesh Atid party out of government and seek to overthrow it.
"This cannot be how a government's policy is represented," Lieberman told a conference in the southern city of Eilat, in remarks relayed by his spokesman. "We must decide and define one diplomatic programme, which would bind all parts of the government."
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"In the Middle East everyone is afraid of everyone, therefore everyone must be brought to the negotiating table at the same time and do it all in parallel," he said.
"The moderate Arab states are currently dealing with the same threats we are -- Iran, Syria, Al-Qaeda and extremist Islam, and if they want to survive, they must cooperate with us openly," he said.
Lapid made similar remarks last night, calling for renewed talks with the Palestinians and an effort to normalise relations with moderate Arab nations such as Saudi Arabia and the Gulf states.
"If we say yes, we'll cease being a Jewish state. If we say no, we'll cease being a democratic state. Both options are destructive for Israel," he said.
"It is time Israel decided where its borders are.