Those frontier clashes have forced the Israeli military to divert resources to its northern border that otherwise may have been sent to the Gaza Strip, a Palestinian territory controlled by Hamas, in retaliatory attacks.
Thousands of Nasrallah’s supporters gathered to watch his speech, televised on huge screens set up all across Lebanon. Large crowds chanted in support of the Beirut-born cleric, now 63, and one of the most recognisable figures in the Arab world.
Even in Jerusalem, his words were broadcast on radio.
Much of what he had to say, though, reiterated sentiments from past speeches, using grandiose language to rail against the US and Israel.
He praised the “resistance fighters” who had died in the conflict so far, saying they were now in a place where “there is no American or Israeli hegemony or hubris [and] no massacres”.
Declaring full-scale war now would be costly for Hezbollah and Lebanon, where the group holds significant political sway. Lebanon is grappling with a severe economic crisis.
Hezbollah also suffered devastating losses in its last major war with Israel in 2006. At least 57 of its fighters have been killed in the recent border clashes, Nasrallah said, amounting to a fifth of the losses it suffered during the 2006 conflict.
Military nowhere to be seen
Near the Israel-Lebanon border on Friday afternoon, just before Nasrallah spoke, the Israeli military was nowhere to be seen.
Roads and villages dozens of kilometres away from the frontier sat empty after recent evacuations prompted by the fighting.
Residents of Kiryat Shmona, the biggest city near the border, were ordered to leave less than a fortnight ago as rocket attacks from Lebanon intensified.
Municipal workers were busy clearing up the yard of a street-side cafe that had been hit by a rocket.
Cats were running around the charred remains of parked cars as workers poured asphalt into the crater created by the projectile.
A few doors away, Shimon Aymon, 64, was drinking beer at one of the few supermarkets that stayed open after the evacuation orders.
A native of Kiryat Shmona, Mr Aymon said he finds the idea of leaving hard because of his 86-year-old mother.
“Why should I go to another place? There will be bombing somewhere else, too.”
As an acquaintance picked up a charred piece of Hezbollah rocket as big as a carrot, Mr Aymon admitted that he lives in fear even though he had decided to stay: “You feel it in your body. If someone tells you it’s not scary, they are crazy.”