The Buddies won 4-3 at Dundee United, with goals from Paul Dummett, Steven Thompson, Marc McAusland and a rare David van Zanten strike.
Lennon said: "We're just going to ask the boys for one last push before a welcome break and look for the same commitment, the same work ethic and the same quality.
"I don't know if that break's coming at a good time for us or not."
Saints hope to have a new recruit for Wednesday's match at home to Kilmarnock, with a six-month loan deal agreed with Newcastle for midfielder Conor Newton.
Dummett's loan from Newcastle has also been extended to include the Scottish Communities League Cup semi-final with Celtic and could be lengthened further.
"Newcastle are still assessing Paul's deal but we're led to believe we'll have Paul until the end of the season," added Lennon, who denied a bid had been received for Kenny McLean, who is currently out injured.