Hi there!
Yes, I am using macOS 10.15.4.
I can ping foundation.biblepay.org without issues:
# ping foundation.biblepay.org
PING foundation.biblepay.org (104.238.147.232): 56 data bytes
64 bytes from 104.238.147.232: icmp_seq=0 ttl=110 time=57.085 ms
64 bytes from 104.238.147.232: icmp_seq=1 ttl=110 time=59.394 ms
Still having the connection error when mining though:
% ./xmrig -o stratum+tcp://foundation.biblepay.org:3001 -u my_bbp_address -p my_monero_address
 * ABOUT        bbprig/5.10.1 clang/10.0.0
 * BBP + XMR - Welcome to the future of orphan charity
 * To donate to the XMRig devs, send XMR here 48edfHu7V9Z84YzzMa6fUueoELZ9ZRXq9VetWzYGzKt52XU5xvqgzYnDK9URnRoJMk1j8nLwEVsaSWJ4fhdUyZijBGUicoD (or BTC here) 1P7ujsXeX7GxQwHNnJsRMgAdNkFZmNVqJT
 * LIBS         libuv/1.34.2 OpenSSL/1.1.1d hwloc/2.2.0
 * HUGE PAGES   supported
 * 1GB PAGES    unavailable
 * CPU          Intel(R) Core(TM) i5-5287U CPU @ 2.90GHz (1) x64 AES
                L2:0.5 MB L3:3.0 MB 2C/4T NUMA:1
 * MEMORY       6.4/8.0 GB (80%)
 * DONATE       0%
 * ASSEMBLY     auto:intel
 * POOL #1      stratum+tcp://foundation.biblepay.org:3001 algo auto
 * COMMANDS     hashrate, pause, resume
 * OPENCL       disabled
 * CUDA         disabled
[2020-05-26 13:53:59.670] [foundation.biblepay.org:4444] connect error: "connection timed out"
[2020-05-26 13:53:59.670] [foundation.biblepay.org:4444] connect error: "operation canceled"
[2020-05-26 13:53:59.670] [foundation.biblepay.org:4444] connect error: "invalid state: 4"