Likutei Sichos – Vol 25 p 086 ff – Yitzchok’s Bris

VaYera Patriarchs (07) Likutei Sichos Vol 25 p 086 ff Yitzchok’s Bris is superior not only to Yishmael’s but to Avrohom’s as well. Avrohom’s Bris was from higher than reason, but his 99 years of preparation cover this over, and the idea that it is entirely from Hashem is not obvious.