Keller said the hardest part was telling the Lehigh coaches.
"I made a commitment, and I never want to go back on my commitments," Keller said. "But I was looking at the next four years of my life. I felt like if I didn't do it I would regret it."
As an all-South Jersey defensive end as well as a quarterback, the 6-foot-3, 225-pound Keller led Triton to an 8-3 record last season.
He had said that Lehigh was going to give him an opportunity to play quarterback, with tight end as a fallback plan.
At Lafayette, he said he will enter the program as a tight end.
Keller said he will sign with Lafayette on Wednesday morning.
"That's it. I'm done," Keller said.
Bishop Eustace recruits. Defensive backs Anthony Marcozzi (Bucknell) and Joe McGuckin (Sacred Heart), who were part of Bishop Eustace's sturdy defense, made college commitments on Tuesday.
Although the Crusaders went 4-6, they allowed just 107 points and stymied offenses of top teams such as Woodrow Wilson, Triton, Camden Catholic, and Pennsauken for long stretches.
The 5-11, 190-pound Marcozzi was a cornerback and wide receiver. He had 27 tackles and also made 22 catches for 407 yards and two touchdowns.
"I knew as soon as I stepped on the campus that it was right for me," said Marcozzi, who visited Bucknell for its spring game as a junior and made an official visit in early December. "You can't beat the academics, it's great football in the Patriot League, and I felt so at home on the campus."
Marcozzi has been accepted into Bucknell's management program but said he is undecided on his major.
The 6-4, 190-pound McGuckin was a strong safety who made 24 tackles.
"I liked the school and felt like I fit in there well," McGuckin said of Sacred Heart.
McGuckin said he will begin his career as a defensive back but could switch to linebacker. He plans to major in computer programing.
D-II signings. Delsea defensive lineman Trey Parker has committed to Washburn, a Division II program in Topeka, Kan. Two other former Delsea players, Sean McPherson and Tyler Coulbourn, are members of the Ichabods program.
Shawnee linebacker Wes Hoffner and Woodrow Wilson wide receiver Joseph Taylor have committed to American International (Springfield, Mass.), and Shawnee offensive lineman Jesse Osborne has committed to Bloomsburg (Pa.).