WARSAW, JUNE 8 -- Offering a blessing to his fellow countrymen "who know the joy and the suffering of living in this land," Pope John Paul II arrived here for his third papal trip home and called on Poland's communist rulers to respect the sanctity of human rights.

After triumphantly winding his way into the city through throngs of cheering Poles waving flowers, the pope warned Polish communist leader Gen. Wojciech Jaruzelski at Warsaw's Royal Castle that "every violation or disrespect of human rights is a threat to peace."

Jaruzelski, who declared martial law 5 1/2 years ago to suppress the independent trade union Solidarity, responded with a strong defense of his record but stressed his government's determination to work with the pope's Roman Catholic Church to create "the model of constructive coexistence."

"History cannot be annulled," Jaruzelski declared as the pope stood beside him, head bowed, and grimly stared at the parquet floor before him.

"We do not fear new solutions," the Polish communist leader added. "We are open to all realistic initiatives."

Earlier, at the airport, Jaruzelski praised the "successful dialogue between the Holy See and the Polish People's Republic."

The varied exchange before a 70-minute private meeting at the official castle came at the beginning of a seven-day visit by the pope. Both the church and the government had forecast the visit would lead to a new era of stability in Polish church-state relations. The visit could help open new links between the Vatican and the East Bloc states, church and government officials say.

However, there was little mention of this new era of cooperation by the pope. He limited his public remarks to Jaruzelski to a strong call for an expansion of civil liberties in Poland that the Polish Communist leader insisted already exist.

"If you want to keep the peace, remember the individual human being," the pope said to Jaruzelski. "Remember among other things his right to religious liberty, free association and the expression of his views."

The pope's mention of the right of "free association" was a reference to a major demand of the Polish church hierarchy over the past year as Jaruzelski has sought accommodation with church leaders.

Ongoing church-state negotiations have also focused on the establishment of diplomatic relations between Warsaw and the Vatican, sought by Jaruzelski, and the church's own desire for formal legal status in Poland.

In speaking to the pope, Jaruzelski maintained that reforms had already been implemented and the situation had stabilized since John Paul's last visit. "The swollen waves have been smoothed," he said. "The fires often kindled by alien hands have died down."

"Four years ago . . . I stated that the line of renewal, agreement and reforms is irreversible in Poland," Jaruzelski said. "The past has fully borne that out. There is no turning back from this road."

Officially here to lead a Eucharistic congress devoted to the "moral renewal of man and the nation," the pope is also expected to defend the national interests of Poles as he crisscrosses this nation of 38 million overwhelmingly Catholic citizens.

The highlight in a series of events symbolically supportive of the national opposition is expected to be the meeting Thursday of the 67-year-old pontiff with Lech Walesa, the still active chairman of the banned Solidarity movement.

Before returning to Rome on Sunday, the pope will pray at the grave of murdered, pro-Solidarity priest Jerzy Popieluszko, whom he quoted in his first homily tonight, and visit Gdansk, the northern port city where Solidarity was born in 1980.

Solidarity supporters were on hand along the papal motorcade route from the airport. They unfurled Solidarity banners as the pope stopped at the recently completed statue honoring former Polish primate cardinal Stefan Wyszynski, near the historic Old Town.

Heavily reinforced police, deployed by the thousands around the sites of the pope's visit, moved in quickly in most cases and tore down the banners before any larger manifestations could occur. Several Solidarity activists were reported briefly detained.

However, there seemed to be no threat of major demonstrations as the crowds who turned out to see the pope walked through the streets in a happy but relatively subdued atmosphere.

Church officials and several participants said that there appeared to be less excitement about the visit than the pope's previous two trips home -- one in 1979 shortly after he was named pope and the second in 1983 in the midst of martial law.

Church officials have predicted that more than 10 million Poles -- or nearly a third of the nation's population -- will attend one of the pope's appearances. But other church officials privately point out that much effort has been devoted to persuading believers to appear and a spontaneous outpouring of affection was not expected.

"There is not as much emotion as in 1979," said a young man in his 20s who stood along the pope's route this morning.

There was certainly little mention of the tensions that have gripped church-state relations here in the past as the pope arrived at Okecie international airport this morning. All sides sought to put the best face on this trip home.

The Polish primate, Cardinal Jozef Glemp, in greeting the pope, said, "We don't want to either stress too much our weaknesses and faults nor do we want to hide them. There will be time later for the explanation of difficulties."

Jaruzelski, meanwhile, spoke warmly of his ice-breaking meeting with the pope in the Vatican last January.

Tens of thousands of people lined the six-mile route from the airport into the Polish capital, cheering their most famous native son and waving tiny yellow-and-white Vatican flags as he passed in his bullet-proof glassed-in "popemobile." The pope proceeded immediately to St. John the Baptist Cathedral in the Old Town, where he met with the the clergy of Warsaw's diocese and hundreds of Poland's cloistered nuns.